By Vinayak Bevinakatti


2010-01-07 12:04:43 8 Comments

I am trying to create a mail sending application in Android.

If I use:

Intent emailIntent = new Intent(android.content.Intent.ACTION_SEND);

This will launch the built-in Android application; I'm trying to send the mail on button click directly without using this application.

22 comments

@Patriotic 2015-10-06 20:52:18

I am unable to run Vinayak B's code. Finally i solved this issue by following :

1.Using this

2.Applying AsyncTask.

3.Changing security issue of sender gmail account.(Change to "TURN ON") in this

@Shreshth Kharbanda 2018-02-18 03:42:16

I found a shorter alternative for others who need help. The code is:

package com.example.mail;

import java.util.Properties;

import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

public class SendMailTLS {

    public static void main(String[] args) {

        final String username = "[email protected]";
        final String password = "password";

        Properties props = new Properties();
        props.put("mail.smtp.auth", "true");
        props.put("mail.smtp.starttls.enable", "true");
        props.put("mail.smtp.host", "smtp.gmail.com");
        props.put("mail.smtp.port", "587");

        Session session = Session.getInstance(props,
          new javax.mail.Authenticator() {
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication("username", "password");
            }
          });

        try {

            Message message = new MimeMessage(session);
            message.setFrom(new InternetAddress("[email protected]"));
            message.setRecipients(Message.RecipientType.TO,
                InternetAddress.parse("[email protected]"));
            message.setSubject("Testing Subject");
            message.setText("Dear Mail Crawler,"
                + "\n\n No spam to my email, please!");

            Transport.send(message);

            System.out.println("Done");

        } catch (MessagingException e) {
            throw new RuntimeException(e);
        }
    }
}

Source: Sending Email via JavaMail API

Hope this Helps! Good Luck!

@michasaucer 2019-01-22 17:04:22

Not work for me

@Vinayak Bevinakatti 2010-01-09 11:03:30

Send e-mail in Android using the JavaMail API using Gmail authentication.

Steps to create a sample Project:

MailSenderActivity.java:

public class MailSenderActivity extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        final Button send = (Button) this.findViewById(R.id.send);
        send.setOnClickListener(new View.OnClickListener() {

            public void onClick(View v) {
                try {   
                    GMailSender sender = new GMailSender("[email protected]", "password");
                    sender.sendMail("This is Subject",   
                            "This is Body",   
                            "[email protected]",   
                            "[email protected]");   
                } catch (Exception e) {   
                    Log.e("SendMail", e.getMessage(), e);   
                } 

            }
        });

    }
}

GMailSender.java:

public class GMailSender extends javax.mail.Authenticator {   
    private String mailhost = "smtp.gmail.com";   
    private String user;   
    private String password;   
    private Session session;   

    static {   
        Security.addProvider(new com.provider.JSSEProvider());   
    }  

    public GMailSender(String user, String password) {   
        this.user = user;   
        this.password = password;   

        Properties props = new Properties();   
        props.setProperty("mail.transport.protocol", "smtp");   
        props.setProperty("mail.host", mailhost);   
        props.put("mail.smtp.auth", "true");   
        props.put("mail.smtp.port", "465");   
        props.put("mail.smtp.socketFactory.port", "465");   
        props.put("mail.smtp.socketFactory.class",   
                "javax.net.ssl.SSLSocketFactory");   
        props.put("mail.smtp.socketFactory.fallback", "false");   
        props.setProperty("mail.smtp.quitwait", "false");   

        session = Session.getDefaultInstance(props, this);   
    }   

    protected PasswordAuthentication getPasswordAuthentication() {   
        return new PasswordAuthentication(user, password);   
    }   

    public synchronized void sendMail(String subject, String body, String sender, String recipients) throws Exception {   
        try{
        MimeMessage message = new MimeMessage(session);   
        DataHandler handler = new DataHandler(new ByteArrayDataSource(body.getBytes(), "text/plain"));   
        message.setSender(new InternetAddress(sender));   
        message.setSubject(subject);   
        message.setDataHandler(handler);   
        if (recipients.indexOf(',') > 0)   
            message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(recipients));   
        else  
            message.setRecipient(Message.RecipientType.TO, new InternetAddress(recipients));   
        Transport.send(message);   
        }catch(Exception e){

        }
    }   

    public class ByteArrayDataSource implements DataSource {   
        private byte[] data;   
        private String type;   

        public ByteArrayDataSource(byte[] data, String type) {   
            super();   
            this.data = data;   
            this.type = type;   
        }   

        public ByteArrayDataSource(byte[] data) {   
            super();   
            this.data = data;   
        }   

        public void setType(String type) {   
            this.type = type;   
        }   

        public String getContentType() {   
            if (type == null)   
                return "application/octet-stream";   
            else  
                return type;   
        }   

        public InputStream getInputStream() throws IOException {   
            return new ByteArrayInputStream(data);   
        }   

        public String getName() {   
            return "ByteArrayDataSource";   
        }   

        public OutputStream getOutputStream() throws IOException {   
            throw new IOException("Not Supported");   
        }   
    }   
}  

JSSEProvider.java:

/*
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

/**
 * @author Alexander Y. Kleymenov
 * @version $Revision$
 */


import java.security.AccessController;
import java.security.Provider;

public final class JSSEProvider extends Provider {

    public JSSEProvider() {
        super("HarmonyJSSE", 1.0, "Harmony JSSE Provider");
        AccessController.doPrivileged(new java.security.PrivilegedAction<Void>() {
            public Void run() {
                put("SSLContext.TLS",
                        "org.apache.harmony.xnet.provider.jsse.SSLContextImpl");
                put("Alg.Alias.SSLContext.TLSv1", "TLS");
                put("KeyManagerFactory.X509",
                        "org.apache.harmony.xnet.provider.jsse.KeyManagerFactoryImpl");
                put("TrustManagerFactory.X509",
                        "org.apache.harmony.xnet.provider.jsse.TrustManagerFactoryImpl");
                return null;
            }
        });
    }
}

ADD 3 jars found in the following link to your Android Project

Click here - How to add External Jars

And don't forget to add this line in your manifest:

<uses-permission android:name="android.permission.INTERNET" />

Just click below link to change account access for less secure apps https://www.google.com/settings/security/lesssecureapps

Run the project and check your recipient mail account for the mail. Cheers!

P.S. And don't forget that you cannot do network operation from any Activity in android. Hence it is recommended to use AsyncTask or IntentService to avoid network on main thread exception.

Jar files: https://code.google.com/archive/p/javamail-android/

@Rich 2010-09-23 19:10:26

Your code seems to use hard coded username and password. Is this currently a security risk (meaning, have the apk's that get uploaded to the market been decompiled)?

@Kamran Omar 2011-02-23 10:22:49

it is not working for the hotmail and gmail. hows possible?

@Avraham Shukron 2011-05-05 23:49:32

Working for me!!! do not forget to add to your app manifest the uses-permission INTERNET

@CITBL 2011-06-18 17:31:09

You have a problem in GMailSender.sendMail(). The problem is that no errors go outside of sendMail because you have try..catch inside it surrounding all the code. You should remove try..catch from sendMail. Otherwise it's impossible to detect errors

@jfisk 2011-08-30 19:16:24

is it possible to use this to attach a jpeg?

@pumpkee 2011-09-21 00:46:32

is there anyway to get an email sent without putting the password into the code? I think users would be startled if i would ask them for their email pw...

@Paresh Mayani 2011-09-23 10:25:33

@Vinayank do you know how can we check whether the mail sent is successful or fail?

@Noby 2011-12-07 14:18:08

i am getting this error javax.mail.MessagingException: Unknown SMTP host: smtp.gmail.com;

@Justin 2012-03-14 14:41:53

So we have to ask the user for their password to make this work? That does not lower customer interaction.

@Som 2012-05-03 07:03:46

I am getting java.lang.NoClassDefFoundError: com.som.mail.GMailSender ???? What could be the reason ? The class is there in my project but this Exception is coming.

@M.A.Murali 2012-05-09 18:15:15

Hi Thanks for the code. but i got java.lang.NoClassDefFoundError on GMailSender sender = new GMailSender(...) on mailsenderactivity. i included all jars and added to build path. i spent some time to resolve it.but i do not get solution. please help me.

@swathi 2012-06-05 05:17:00

Is it possible to send mail without hard coded username and password?

@Heather Herbert 2012-06-11 08:04:03

For throes wanting to send the email from the user without them having to enter it into the application. you may be interested in stackoverflow.com/questions/2112965/…

@amit 2012-07-01 02:02:29

It works, thanks. But I'm getting proguard errors when I export. Anybody have the proguard lines to resolve the erors? "can't find referenced class javax.security", etc.

@Tom 2012-07-09 16:52:07

For those complaining/asking about how to get user's password - that's not the idea here. This is meant to be used with your (developer's) e-mail account. If you want to rely on user's e-mail account you should use the e-mail intent, which is widely discussed in other posts.

@android developer 2012-07-22 07:27:17

do you know of a sample code that also shows how to receive email and do something with it on gmail ?

@Hesham Saeed 2012-09-01 00:11:44

If someone is afraid of his password, you can put it in resources and use it in code. I decompiled some apps and couldn't get any xml file content, only java files.

@Muhammad Umar 2012-09-01 04:38:26

@Vinayak.B I am experiencing AuthenticationFailedException at Transport.send(message). I am using simulators right now but My internet works fine. Antivirus is disabled too and i have checked my pass and email too. Any ideas?

@Adithya 2012-09-30 08:19:26

this works fine using emulator but i am not able to send it using my phone (Galaxy S2). Is there some specific settings i need to do to send it via phone ?

@Stealth Rabbi 2012-11-05 15:01:44

Rather than linking directly to the JARs, link to the project page. You need to adhere to the licenses of android-javamail

@Sahil Mahajan Mj 2012-11-14 05:15:36

thanx a lot. this code works. Is there any way to send a file through email using this code.!

@Spring Breaker 2012-11-21 13:15:29

This code seems to be a nice one but it shows error in file import section. it shows these imports cant be resolved .could you please check it and tell me whats wrong here?

@Mahaveer Muttha 2013-01-22 07:44:10

@Vinayak.B, Hello All can anybody tell me how to add image and text to body part of this method?? i want to send one image and some text in body of mail....

@User42590 2013-04-04 11:36:31

is there any way that we only provide user email address and not pass?

@sri 2013-05-03 07:47:53

JSSEProvider class is licensed is there any problem in future terms.

@Big.Child 2013-05-08 11:10:49

Can I attach .pdf file ? Please someone tell me.

@Vaibs 2013-05-31 07:51:24

@Vinayak.B I am getting Class not fount exception for GMailSender. Did others who got this error fixed it?

@cwiggo 2013-06-06 13:07:22

This line: Security.addProvider(new com.provider.JSSEProvider()); in GmailSender.java is being highlighted as an error. Does anyone know the solution to this line of code? What does it need to point to, my package name? Thanks

@Rupesh Nerkar 2013-06-11 08:04:57

this code is work for android 2.3 but not far latest version android 4.0. means mail is not send on android 4.0.3

@Tushar Pandey 2013-07-04 10:58:24

thanks vinayak , but now how to find that email is not received at the other end .

@Ranjit 2013-08-22 09:53:14

i use all this things as vinayak gives. Also add all the permissions in my manifest. the problem is when I try to send the mail it takes some time to process but nothings happens. Can anybody helps me here plz..

@bancer 2013-09-11 09:04:36

For those having problems with Android 4 follow the tutorial jondev.net/articles/… and execute the actual sending from AsyncTask.

@PankajAndroid 2013-09-20 04:34:45

it's not working for me same code i had put with permision. there is no error yet not sending mail

@Henrique de Sousa 2013-09-20 22:34:08

Same problem for me as @AndroidDev even using 2.3. Will try other solution.

@Karthik 2013-10-03 12:47:47

@Vinayak.B i have tried with gmail its working fine. And i checked other domains its showing message send and it does not show any error but i m not receiving emails?

@Kirit Vaghela 2013-10-15 10:09:31

How to set mine type for mail. i.e I want to send email for text/html .

@Chris Sim 2013-10-18 13:03:12

@Chris right click on the project - properties - java build path - order and export - and tick all the jars plus private libraries

@Chris Sim 2013-10-18 13:12:40

thank you so match for ur awesome answer!!! and thank u AvrahamShukron for your comment guys RupeshNerkar , TusharPandey , RanjitPati , AndroidDev , HenriqueSousa and Karthik maybe it hapened with u like it happened with me: i created a new project and i forgot to add the permission: <uses-permission android:name="android.permission.INTERNET" /> hope I helped u

@Paolo Rovelli 2013-12-02 11:23:39

Considering how easy it is to reverse engineering an APK package, do you think this is a safe approach? I mean, storing a password in plain text doesn't sound too good to me...

@Chris Sim 2013-12-06 14:37:18

This code works on many phones, but it dont on devices version>9 cz there is something like privacy that doesn't allow the new phones to send email .. so I followed this link: jondev.net/articles/… and now its working.. thnx bancer

@eawedat 2013-12-20 11:56:41

@Vinayak.B when run the code the app is freezing "The application gmail (process com.example.gmail) has stopped unexpectedly. Please try again." , I do not know what is wrong. When I uncomment try{ }catch { } to see the error , eclipse does not allow me to do that.

@H P 2013-12-28 23:17:05

This is working for me in test mode but not in production. Any ideas?

@Fantômas 2014-01-09 12:03:45

@Vinayak B.: The question is: how do you get this information? "[email protected]", "password"

@akky777 2014-02-11 07:13:10

can i get the xml file for this code?

@rajshree 2014-02-19 09:12:59

@Vinayak.B sir i am getting authontication failed execption

@SweetWisher ツ 2014-04-21 09:21:10

I don't want static password.. i want dynamic data as the user has signed in to the device...how can I implement this requirement... as username and password can vary from device to device

@Murali Murugesan 2014-11-06 07:31:38

Could you please add a code/link for AsyncTask implementation? We are getting AsyncFutureTask exception.

@Stephen 2015-01-12 11:09:33

can you tell me by default how to send an email verification for adding new users?

@T D Nguyen 2015-01-19 03:26:00

javax.mail.AuthenticationFailedException when sending email althought the user/password are correct. Any solution android 4.4.4?

@user2424370 2015-01-31 06:30:15

@VinayakB Is it possible to replace the body string as generated bitmap QR code?

@Pratik Butani 2015-02-04 07:34:06

Is there any code if mail not sent successfully then it will be stored as draft.

@NoSixties 2015-02-23 14:24:36

I'm getting the following exception message: No provider for smtp. Any idea what could be causing this? I added the jar files to compile in gradle and I also included them in settings.gradle

@vijay 2015-03-05 04:25:31

Hi frdz its not working for me ..Error:: android.os.NetworkOnMainThreadException

@Bamaco 2015-04-04 18:32:55

Use to work great, now getting javax.mail.MessagingException, Could not connect to SMTP host: smtp.gmail.com, port: 465; stack shows caused by javax.net.ssl.SSLHandshakeException: com.android.org.bouncycastle.jce.exception.ExtCertPathValida‌​torException: Could not validate certificate: null

@AndroidManifester 2015-05-14 13:13:11

is there any way that i can use for smtp.rediffmailpro.com? please help...

@gaborous 2015-08-11 10:03:28

Here is seemingly the original link for the code of this answer, and with additional instructions (ie, you need to enable less secure apps on your Gmail account). Another related tutorial here.

@Ashish Tanna 2015-08-17 20:59:56

Thanks! It worked for me. But there was a problem when I used this code, both outlook and gmail were rejecting the mails. The solution was to set the "from" field : message.setFrom(new InternetAddress(user));

@Patel Hiren 2015-09-14 13:34:05

I have try this solution but get the "javax.mail.AuthenticationFailedException" even email and password are correct.

@anshad 2015-10-19 13:11:07

Just click below link to disable security check google.com/settings/security/lesssecureapps

@Rjz Satvara 2016-02-27 05:03:12

Error:Execution failed for task ':MyMailApp:dexDebug'. > com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'C:\Program Files\Java\jdk1.8.0_05\bin\java.exe'' finished with non-zero exit value 2 GOT THIS ERROR

@Inzimam Tariq IT 2016-06-08 09:53:14

how many minutes will it take to send a mail. Because my app run without any exception but there is no mail in both of my recipient mail ids.

@flipperweid 2016-08-26 11:23:42

cause the links to the 3 jars are dead here is an update: code.google.com/archive/p/javamail-android/downloads

@CyberMew 2016-08-29 04:29:49

How can I customise the receiver name and sender name? It just plainly shows the email addresses only.

@Jude Maranga 2016-10-08 10:30:54

Hello guys, can you help me? I got no errors but my test recipient email did not get the mail. Anyone who knows the possible reason for this?

@Cristan 2016-10-11 15:32:51

Those 3 libraries have the GPL license, which will be an issue with closed source projects.

@Kaushal28 2016-11-09 09:46:30

For this we need SMTP username and password right? And this is not free :(

@user6649667 2016-11-09 10:29:36

no errors in code but email is also not sent? :(\

@Sachin Varma 2017-04-12 08:06:18

Those who are facing the problem of "error javax.mail.AuthenticationFailedException",please enable the toggle button from myaccount.google.com/u/0/lesssecureapps

@Rasool Mohamed 2017-06-28 19:02:24

Hi Vinayak Bevinakatti, This code works perfectly with my Mobile Data but its not working on my WIFI. Please assist me. Below are the errors javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 465; nested exception is: java.net.ConnectException: failed to connect to smtp.gmail.com/2404:6800:4003:c00::6d (port 465) after 90000ms: isConnected failed: ENETUNREACH (Network is unreachable) at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.jav‌​‌​a:1391)

@Shawnzey 2017-07-23 21:38:21

is this still working? i tried it but i get no errors but no email either.

@Umitk 2017-08-09 15:29:50

This wont work UNLESS you add a new thread: see here ssaurel.com/blog/…

@Mitja Gustin 2017-10-12 13:44:46

You shuld add recepients one by one in a loop, catching AddressException , otherwise the code fails if usermail is not valid on server. try { final InternetAddress address = new InternetAddress(recepient); try { msg.addRecipient(Message.RecipientType.TO, address); } catch (MessagingException e) { log.log(Level.WARNING, e.getMessage(), e); } } catch (javax.mail.internet.AddressException ex) { log.log(Level.WARNING, ex.getMessage(), ex); }

@mpsbhat 2018-03-17 04:05:15

Can we use webmail ([email protected]) as a sender email?

@Abdulmalek Dery 2018-09-12 08:23:31

@Vinayak Bevinakatti thank you so much this code worked just fine on preMarshmallow OSs but didn't work on Marshmallow or above "the Transport.send(message) hang and never return" do have any idea how could we send email on those systems

@michasaucer 2019-01-22 17:09:44

I Copy paste that code and . Code walk all through methods, when it go to Transport, i dont have anything on my mailbox. How to find error?

@Henri L. 2019-02-12 08:23:05

This code used to work until a couple of days ago (10-feb-2019). Any idea as to why this no longer works? I do not get any error msg, but no email is sent.

@S.R 2017-06-15 14:12:35

GmailBackground is small library to send an email in background without user interaction :

Usage:

    BackgroundMail.newBuilder(this)
            .withUsername("[email protected]")
            .withPassword("password12345")
            .withMailto("[email protected]")
            .withType(BackgroundMail.TYPE_PLAIN)
            .withSubject("this is the subject")
            .withBody("this is the body")
            .withOnSuccessCallback(new BackgroundMail.OnSuccessCallback() {
                @Override
                public void onSuccess() {
                    //do some magic
                }
            })
            .withOnFailCallback(new BackgroundMail.OnFailCallback() {
                @Override
                public void onFail() {
                    //do some magic
                }
            })
            .send();

Configuration:

repositories {
    // ...
    maven { url "https://jitpack.io" }
 }
 dependencies {
            compile 'com.github.yesidlazaro:GmailBackground:1.2.0'
    }

Permissions:

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.INTERNET"/>

Also for attachments, you need to set READ_EXTERNAL_STORAGE permission:

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>

Source

(I've tested it myself)

@user2847219 2018-01-13 14:30:13

does not work. Google writes unsafe application

@M. Usman Khan 2018-01-17 18:11:44

Failed to resolve....com.github.yesidlazaro:GmailBackground:1.2.0

@M. Usman Khan 2018-01-17 18:35:33

Still gives compilation error: Unable to merge dex

@Erich García 2018-04-21 16:50:13

I using it and works perfect. But I made some modifications for use it with different email provider and when send email to Gmail it return me "From" header is missing... How solve it?

@artbristol 2015-04-05 11:16:15

Edit: JavaMail 1.5.5 claims to support Android, so you shouldn't need anything else.

I've ported the latest JavaMail (1.5.4) to Android. It's available in Maven Central, just add the following to build.gradle~~

compile 'eu.ocathain.com.sun.mail:javax.mail:1.5.4'

You can then follow the official tutorial.

Source code is available here: https://bitbucket.org/artbristol/javamail-forked-android

@wrapperapps 2015-12-02 06:31:29

that maven/gradle line didn't work for me. the 1.5.4 download from your bitbucket also didn't work for me. it failed at the same line as regular non-Android javamail does, which is MimeMessage.setText(text).

@artbristol 2016-01-23 13:20:46

@wrapperapps sorry to hear that. "it works for me!". Feel free to open an issue on the bitbucket repo

@steveen zoleko 2016-11-07 16:29:01

@della pramukti raharjo 2016-11-01 15:40:40

To add attachment, don't forget to add.

MailcapCommandMap mc = (MailcapCommandMap) CommandMap
            .getDefaultCommandMap();
    mc.addMailcap("text/html;; x-java-content-handler=com.sun.mail.handlers.text_html");
    mc.addMailcap("text/xml;; x-java-content-handler=com.sun.mail.handlers.text_xml");
    mc.addMailcap("text/plain;; x-java-content-handler=com.sun.mail.handlers.text_plain");
    mc.addMailcap("multipart/*;; x-java-content-handler=com.sun.mail.handlers.multipart_mixed");
    mc.addMailcap("message/rfc822;; x-java-content-handler=com.sun.mail.handlers.message_rfc822");
    CommandMap.setDefaultCommandMap(mc);

@Enrichman 2016-06-23 00:06:38

All the code provided in the other answers is correct and is working fine, but a bit messy, so I decided to publish a library (still in development though) to use it in a easier way: AndroidMail.

You have just to create a MailSender, build a mail and send it (already handled in background with an AsyncTask).

MailSender mailSender = new MailSender(email, password);

Mail.MailBuilder builder = new Mail.MailBuilder();
Mail mail = builder
    .setSender(senderMail)
    .addRecipient(new Recipient(recipient))
    .setText("Hello")
    .build();

mailSender.sendMail(mail);

You can receive a notification for the email sent and it has also the support for different Recipients types (TO, CC and BCC), attachments and html:

MailSender mailSender = new MailSender(email, password);

Mail.MailBuilder builder = new Mail.MailBuilder();
Mail mail = builder
    .setSender(senderMail)
    .addRecipient(new Recipient(recipient))
    .addRecipient(new Recipient(Recipient.TYPE.CC, recipientCC))
    .setText("Hello")
    .setHtml("<h1 style=\"color:red;\">Hello</h1>")
    .addAttachment(new Attachment(filePath, fileName))
    .build();

mailSender.sendMail(mail, new MailSender.OnMailSentListener() {

    @Override
    public void onSuccess() {
        // mail sent!
    }

    @Override
    public void onError(Exception error) {
        // something bad happened :(
    }
});

You can get it via Gradle or Maven:

compile 'it.enricocandino:androidmail:1.0.0-SNAPSHOT'

Please let me know if you have any issue with it! :)

@BIW 2016-10-05 09:13:17

Gradle compiler link didn't work.

@Arpit Patel 2016-03-28 04:10:05

100% working code with demo You can also send multiple email using this answer.

Download Project HERE

Step 1 : Download mail,activation,additionnal jar files and add in your project libs folder in android studio. I added a screen shot see below Download link

libs add

Login with gmail (using your from mail) and TURN ON toggle button LINK

Most of the people forget about this step i hope you will not.

Step 2 : After completing this process. Copy and past this classes into your project.

GMail.java

import android.util.Log;

import java.io.UnsupportedEncodingException;
import java.util.List;
import java.util.Properties;

import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

public class GMail {

    final String emailPort = "587";// gmail's smtp port
    final String smtpAuth = "true";
    final String starttls = "true";
    final String emailHost = "smtp.gmail.com";


    String fromEmail;
    String fromPassword;
    List<String> toEmailList;
    String emailSubject;
    String emailBody;

    Properties emailProperties;
    Session mailSession;
    MimeMessage emailMessage;

    public GMail() {

    }

    public GMail(String fromEmail, String fromPassword,
            List<String> toEmailList, String emailSubject, String emailBody) {
        this.fromEmail = fromEmail;
        this.fromPassword = fromPassword;
        this.toEmailList = toEmailList;
        this.emailSubject = emailSubject;
        this.emailBody = emailBody;

        emailProperties = System.getProperties();
        emailProperties.put("mail.smtp.port", emailPort);
        emailProperties.put("mail.smtp.auth", smtpAuth);
        emailProperties.put("mail.smtp.starttls.enable", starttls);
        Log.i("GMail", "Mail server properties set.");
    }

    public MimeMessage createEmailMessage() throws AddressException,
            MessagingException, UnsupportedEncodingException {

        mailSession = Session.getDefaultInstance(emailProperties, null);
        emailMessage = new MimeMessage(mailSession);

        emailMessage.setFrom(new InternetAddress(fromEmail, fromEmail));
        for (String toEmail : toEmailList) {
            Log.i("GMail", "toEmail: " + toEmail);
            emailMessage.addRecipient(Message.RecipientType.TO,
                    new InternetAddress(toEmail));
        }

        emailMessage.setSubject(emailSubject);
        emailMessage.setContent(emailBody, "text/html");// for a html email
        // emailMessage.setText(emailBody);// for a text email
        Log.i("GMail", "Email Message created.");
        return emailMessage;
    }

    public void sendEmail() throws AddressException, MessagingException {

        Transport transport = mailSession.getTransport("smtp");
        transport.connect(emailHost, fromEmail, fromPassword);
        Log.i("GMail", "allrecipients: " + emailMessage.getAllRecipients());
        transport.sendMessage(emailMessage, emailMessage.getAllRecipients());
        transport.close();
        Log.i("GMail", "Email sent successfully.");
    }

}

SendMailTask.java

import android.app.Activity;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.util.Log;

import java.util.List;

public class SendMailTask extends AsyncTask {

    private ProgressDialog statusDialog;
    private Activity sendMailActivity;

    public SendMailTask(Activity activity) {
        sendMailActivity = activity;

    }

    protected void onPreExecute() {
        statusDialog = new ProgressDialog(sendMailActivity);
        statusDialog.setMessage("Getting ready...");
        statusDialog.setIndeterminate(false);
        statusDialog.setCancelable(false);
        statusDialog.show();
    }

    @Override
    protected Object doInBackground(Object... args) {
        try {
            Log.i("SendMailTask", "About to instantiate GMail...");
            publishProgress("Processing input....");
            GMail androidEmail = new GMail(args[0].toString(),
                    args[1].toString(), (List) args[2], args[3].toString(),
                    args[4].toString());
            publishProgress("Preparing mail message....");
            androidEmail.createEmailMessage();
            publishProgress("Sending email....");
            androidEmail.sendEmail();
            publishProgress("Email Sent.");
            Log.i("SendMailTask", "Mail Sent.");
        } catch (Exception e) {
            publishProgress(e.getMessage());
            Log.e("SendMailTask", e.getMessage(), e);
        }
        return null;
    }

    @Override
    public void onProgressUpdate(Object... values) {
        statusDialog.setMessage(values[0].toString());

    }

    @Override
    public void onPostExecute(Object result) {
        statusDialog.dismiss();
    }

}

Step 3 : Now you can change this class according to your needs also you can send multiple mail using this class. i provide xml and java file both.

activity_mail.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingLeft="20dp"
    android:paddingRight="20dp"
    android:paddingTop="30dp">

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:paddingTop="10dp"
        android:text="From Email" />

    <EditText
        android:id="@+id/editText1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#FFFFFF"
        android:cursorVisible="true"
        android:editable="true"
        android:ems="10"
        android:enabled="true"
        android:inputType="textEmailAddress"
        android:padding="5dp"
        android:textColor="#000000">

        <requestFocus />
    </EditText>

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:paddingTop="10dp"
        android:text="Password (For from email)" />

    <EditText
        android:id="@+id/editText2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#FFFFFF"
        android:ems="10"
        android:inputType="textPassword"
        android:padding="5dp"
        android:textColor="#000000" />

    <TextView
        android:id="@+id/textView3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:paddingTop="10dp"
        android:text="To Email" />

    <EditText
        android:id="@+id/editText3"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#ffffff"
        android:ems="10"
        android:inputType="textEmailAddress"
        android:padding="5dp"
        android:textColor="#000000" />

    <TextView
        android:id="@+id/textView4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:paddingTop="10dp"
        android:text="Subject" />

    <EditText
        android:id="@+id/editText4"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#ffffff"
        android:ems="10"
        android:padding="5dp"
        android:textColor="#000000" />

    <TextView
        android:id="@+id/textView5"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:paddingTop="10dp"
        android:text="Body" />

    <EditText
        android:id="@+id/editText5"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#ffffff"
        android:ems="10"
        android:inputType="textMultiLine"
        android:padding="35dp"
        android:textColor="#000000" />

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Send Email" />

</LinearLayout>

SendMailActivity.java

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import java.util.Arrays;
import java.util.List;

public class SendMailActivity extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        final Button send = (Button) this.findViewById(R.id.button1);

        send.setOnClickListener(new View.OnClickListener() {

            public void onClick(View v) {
                Log.i("SendMailActivity", "Send Button Clicked.");

                String fromEmail = ((TextView) findViewById(R.id.editText1))
                        .getText().toString();
                String fromPassword = ((TextView) findViewById(R.id.editText2))
                        .getText().toString();
                String toEmails = ((TextView) findViewById(R.id.editText3))
                        .getText().toString();
                List<String> toEmailList = Arrays.asList(toEmails
                        .split("\\s*,\\s*"));
                Log.i("SendMailActivity", "To List: " + toEmailList);
                String emailSubject = ((TextView) findViewById(R.id.editText4))
                        .getText().toString();
                String emailBody = ((TextView) findViewById(R.id.editText5))
                        .getText().toString();
                new SendMailTask(SendMailActivity.this).execute(fromEmail,
                        fromPassword, toEmailList, emailSubject, emailBody);
            }
        });
    }
}

Note Dont forget to add internet permission in your AndroidManifest.xml file

<uses-permission android:name="android.permission.INTERNET"/>

Hope it work if it not then just comment down below.

@Yonah Karp 2016-07-24 18:04:06

Is this secure? If I replace the "fromEmail" and "fromPassword" with a hardcoded user and password, do I have to worry about security issues?

@user3051460 2016-07-29 10:12:12

Is it possible to receive email using your method? I want to receive an email

@Totumus Maximus 2018-11-29 11:48:32

@ArpitPatel this works pretty neatly. But I am also worried about security. If you use gmail, google might block certain apps that try to do just this.

@Arpit Patel 2018-12-28 19:54:36

@TotumusMaximus If you worried about security than you can use your email and password using api

@NoSixties 2015-02-24 10:39:29

I tried using the code that @Vinayak B submitted. However I'm getting an error saying: No provider for smtp

I created a new question for this with more information HERE

I was able to fix it myself after all. I had to use an other mail.jar and I had to make sure my "access for less secure apps" was turned on.

I hope this helps anyone who has the same problem. With this done, this piece of code works on the google glass too.

@Omkar Gokhale 2014-12-01 13:29:56

Those who are getting ClassDefNotFoundError try to move that Three jar files to lib folder of your Project,it worked for me!!

@nckbrz 2015-05-02 18:40:07

Jars are considered to be libraries of classes. Don't forget to rebuild...

@Zephyr 2014-09-26 17:20:40

In case that you are demanded to keep the jar library as small as possible, you can include the SMTP/POP3/IMAP function separately to avoid the "too many methods in the dex" problem.

You can choose the wanted jar libraries from the javanet web page, for example, mailapi.jar + imap.jar can enable you to access icloud, hotmail mail server in IMAP protocol. (with the help of additional.jar and activation.jar)

@Nishanthi Grashia 2014-07-30 09:37:30

Without user intervention, you can send as follows:

  1. Send email from client apk. Here mail.jar, activation.jar is required to send java email. If these jars are added, it might increase the APK Size.

  2. Alternatively, You can use a web-service at the server side code, which will use the same mail.jar and activation.jar to send email. You can call the web-service via asynctask and send email. Refer same link.

(But, you will need to know the credentials of the mail account)

@Ryan Heitner 2012-11-20 10:03:46

In order to help those getting a Network On Main Thread Exception with an SDK Target >9. This is using droopie's code above but will work similarly for any.

StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();

StrictMode.setThreadPolicy(policy); 

android.os.NetworkOnMainThreadException

You can use AsyncTask as below

public void onClickMail(View view) {
    new SendEmailAsyncTask().execute();
}

class SendEmailAsyncTask extends AsyncTask <Void, Void, Boolean> {
    Mail m = new Mail("[email protected]", "my password");

    public SendEmailAsyncTask() {
        if (BuildConfig.DEBUG) Log.v(SendEmailAsyncTask.class.getName(), "SendEmailAsyncTask()");
        String[] toArr = { "to [email protected]"};
        m.setTo(toArr);
        m.setFrom("from [email protected]");
        m.setSubject("Email from Android");
        m.setBody("body.");
    }

    @Override
    protected Boolean doInBackground(Void... params) {
        if (BuildConfig.DEBUG) Log.v(SendEmailAsyncTask.class.getName(), "doInBackground()");
        try {
            m.send();
            return true;
        } catch (AuthenticationFailedException e) {
            Log.e(SendEmailAsyncTask.class.getName(), "Bad account details");
            e.printStackTrace();
            return false;
        } catch (MessagingException e) {
            Log.e(SendEmailAsyncTask.class.getName(), m.getTo(null) + "failed");
            e.printStackTrace();
            return false;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

@Gunaseelan 2013-04-11 10:26:28

Where to add this class

@roger_that 2014-03-13 15:57:07

m still getting the NetworkOnMainThreadException

@Mark 2014-06-09 12:26:47

Word of warning if using "smtp.gmail.com" as the default smtp server.

Google will force you to change your linked email account password frequently due to their over zealous "suspicious activity" polices. In essence it treats repeated smtp requests from different countries within a short time frame as "suspicious activity". As they assume you (the email account holder) can only be in one country at a time.

When google systems detect "suspicious activity" it will prevent further emails until you change the password. As you will have hard coded the password into the app you have to re-release the app each time this happens, not ideal. This happened 3 times in a week to me, I even stored the password on another server and dynamically fetched the password each time google forced me to change it.

So I recommend using one of the many free smtp providers instead of "smtp.gmail.com" to avoid this security problem. Use the same code but change "smtp.gmail.com" to your new smtp forwarding host.

@Paulo Matuki 2014-11-11 12:54:31

That is a good point. But can you please give an example of alternate email provider that worked with code (only replacing smtp and login details). I've tried it with hushmail and email.com but without success. Will keep trying with others.

@Wesley 2015-03-24 09:28:07

@PauloMatuki , @Mark , Hi, have you guys solve the suspicioud activity problem?

@Rashid 2014-05-06 06:10:57

For sending a mail with attachment..

public class SendAttachment{
                    public static void main(String [] args){ 
             //to address
                    String to="[email protected]";//change accordingly
                    //from address
                    final String user="[email protected]";//change accordingly
                    final String password="password";//change accordingly 
                     MailcapCommandMap mc = (MailcapCommandMap) CommandMap.getDefaultCommandMap();
                   mc.addMailcap("text/html;; x-java-content-handler=com.sun.mail.handlers.text_html");
                  mc.addMailcap("text/xml;; x-java-content-handler=com.sun.mail.handlers.text_xml");
                  mc.addMailcap("text/plain;; x-java-content-handler=com.sun.mail.handlers.text_plain");
                  mc.addMailcap("multipart/*;; x-java-content-handler=com.sun.mail.handlers.multipart_mixed");
                  mc.addMailcap("message/rfc822;; x-java-content-handler=com.sun.mail.handlers.message_rfc822");
                  CommandMap.setDefaultCommandMap(mc); 
                  //1) get the session object   
                  Properties properties = System.getProperties();
                  properties.put("mail.smtp.port", "465"); 
                  properties.put("mail.smtp.host", "smtp.gmail.com");
                    properties.put("mail.smtp.socketFactory.port", "465");
                    properties.put("mail.smtp.socketFactory.class",
                            "javax.net.ssl.SSLSocketFactory");
                    properties.put("mail.smtp.auth", "true");
                    properties.put("mail.smtp.port", "465");

                  Session session = Session.getDefaultInstance(properties,
                   new javax.mail.Authenticator() {
                   protected PasswordAuthentication getPasswordAuthentication() {
                   return new PasswordAuthentication(user,password);
                   }
                  });

                  //2) compose message   
                  try{ 
                    MimeMessage message = new MimeMessage(session);
                    message.setFrom(new InternetAddress(user));
                    message.addRecipient(Message.RecipientType.TO,new InternetAddress(to));
                    message.setSubject("Hii"); 
                    //3) create MimeBodyPart object and set your message content    
                    BodyPart messageBodyPart1 = new MimeBodyPart();
                    messageBodyPart1.setText("How is This"); 
                    //4) create new MimeBodyPart object and set DataHandler object to this object    
                    MimeBodyPart messageBodyPart2 = new MimeBodyPart();
                //Location of file to be attached
                    String filename = Environment.getExternalStorageDirectory().getPath()+"/R2832.zip";//change accordingly
                    DataSource source = new FileDataSource(filename);
                    messageBodyPart2.setDataHandler(new DataHandler(source));
                    messageBodyPart2.setFileName("Hello"); 
                    //5) create Multipart object and add MimeBodyPart objects to this object    
                    Multipart multipart = new MimeMultipart();
                    multipart.addBodyPart(messageBodyPart1);
                    multipart.addBodyPart(messageBodyPart2); 
                    //6) set the multiplart object to the message object
                    message.setContent(multipart ); 
                    //7) send message 
                    Transport.send(message); 
                   System.out.println("MESSAGE SENT....");
                   }catch (MessagingException ex) {ex.printStackTrace();}
                  }
                }

@Rashid 2014-05-06 06:11:52

Add the jar files activation.jar , additionnal.jar , javax.mail.jar

@margabro 2014-05-13 09:54:46

I get the following error when trying your method: 05-13 11:51:50.454: E/AndroidRuntime(4273): android.os.NetworkOnMainThreadException 05-13 11:51:50.454: E/AndroidRuntime(4273): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(Stri‌​ctMode.java:1156). I have internet permissions. Any advice?

@Rashid 2014-05-13 09:56:45

Try calling the method inside a thread... Its a time consuming process...it cannot run on the main thread...

@Syamantak Basu 2014-05-22 06:49:22

Am using exactly this code in my Android Project.The mail is working fine for me. But the attachment part is not working. Am trying to attach a .txt file.But the mail am receiving consists of an unknown type of file that am unable to open. Please help.

@Rashid 2014-05-22 06:55:08

Just try renaming it to *.txt .it will work..and plz let me know the result..

@Syamantak Basu 2014-05-22 07:10:21

@Rashid ofcourse I did that. When I was using Intent previously,my attached file was coming right.

@dhiraj kakran 2014-02-25 11:50:05

 Add jar files mail.jar,activation.jar,additionnal.jar

 String sub="Thank you for your online registration" ; 
 Mail m = new Mail("emailid", "password"); 

 String[] toArr = {"[email protected]",sEmailId};
 m.setFrom("[email protected]"); 

     m.setTo(toArr);
     m.setSubject(sub);
    m.setBody(msg);



                     try{


                            if(m.send()) { 

                            } else { 

                            } 
                          } catch(Exception e) { 

                            Log.e("MailApp", "Could not send email", e); 
                          } 

  package com.example.ekktra;

   import java.util.Date;
   import java.util.Properties;

   import javax.activation.CommandMap;
   import javax.activation.DataHandler;
   import javax.activation.DataSource;
   import javax.activation.FileDataSource;
   import javax.activation.MailcapCommandMap;
   import javax.mail.BodyPart;
   import javax.mail.Multipart;
   import javax.mail.PasswordAuthentication;
   import javax.mail.Session;
   import javax.mail.Transport;
   import javax.mail.internet.InternetAddress;
   import javax.mail.internet.MimeBodyPart;
   import javax.mail.internet.MimeMessage;
   import javax.mail.internet.MimeMultipart;

   public class Mail extends javax.mail.Authenticator { 
     private String _user; 
     private String _pass; 

     private String[] _to; 

     private String _from; 

     private String _port; 
     private String _sport; 

     private String _host; 

     private String _subject; 
     private String _body; 

     private boolean _auth; 

     private boolean _debuggable; 

     private Multipart _multipart; 


   public Mail() { 
      _host = "smtp.gmail.com"; // default smtp server 
      _port = "465"; // default smtp port 
      _sport = "465"; // default socketfactory port 

      _user = ""; // username 
      _pass = ""; // password 
      _from = ""; // email sent from 
      _subject = ""; // email subject 
      _body = ""; // email body 

      _debuggable = false; // debug mode on or off - default off 
      _auth = true; // smtp authentication - default on 

      _multipart = new MimeMultipart(); 

      // There is something wrong with MailCap, javamail can not find a handler for the        multipart/mixed part, so this bit needs to be added. 
      MailcapCommandMap mc = (MailcapCommandMap) CommandMap.getDefaultCommandMap(); 
   mc.addMailcap("text/html;; x-java-content-handler=com.sun.mail.handlers.text_html"); 
   mc.addMailcap("text/xml;; x-java-content-handler=com.sun.mail.handlers.text_xml"); 
   mc.addMailcap("text/plain;; x-java-content-  handler=com.sun.mail.handlers.text_plain"); 
   mc.addMailcap("multipart/*;; x-java-content-handler=com.sun.mail.handlers.multipart_mixed"); 
   mc.addMailcap("message/rfc822;; x-java-content- handler=com.sun.mail.handlers.message_rfc822"); 
    CommandMap.setDefaultCommandMap(mc); 
   } 

 public Mail(String user, String pass) { 
  this(); 

  _user = user; 
   _pass = pass; 
 } 

public boolean send() throws Exception { 
   Properties props = _setProperties(); 

  if(!_user.equals("") && !_pass.equals("") && _to.length > 0 && !_from.equals("") &&   !_subject.equals("") /*&& !_body.equals("")*/) { 
    Session session = Session.getInstance(props, this); 

    MimeMessage msg = new MimeMessage(session); 

     msg.setFrom(new InternetAddress(_from)); 

    InternetAddress[] addressTo = new InternetAddress[_to.length]; 
     for (int i = 0; i < _to.length; i++) { 
      addressTo[i] = new InternetAddress(_to[i]); 
    } 
      msg.setRecipients(MimeMessage.RecipientType.TO, addressTo); 

    msg.setSubject(_subject); 
    msg.setSentDate(new Date()); 

  // setup message body 
  BodyPart messageBodyPart = new MimeBodyPart(); 
    messageBodyPart.setText(_body); 
    _multipart.addBodyPart(messageBodyPart); 

     // Put parts in message 
    msg.setContent(_multipart); 

    // send email 
    Transport.send(msg); 

    return true; 
   } else { 
     return false; 
   } 
  } 

   public void addAttachment(String filename) throws Exception { 
    BodyPart messageBodyPart = new MimeBodyPart(); 
    DataSource source = new FileDataSource(filename); 
      messageBodyPart.setDataHandler(new DataHandler(source)); 
    messageBodyPart.setFileName(filename); 

   _multipart.addBodyPart(messageBodyPart); 
 } 

  @Override 
  public PasswordAuthentication getPasswordAuthentication() { 
     return new PasswordAuthentication(_user, _pass); 
  } 

   private Properties _setProperties() { 
   Properties props = new Properties(); 

    props.put("mail.smtp.host", _host); 

  if(_debuggable) { 
    props.put("mail.debug", "true"); 
  } 

  if(_auth) { 
    props.put("mail.smtp.auth", "true"); 
   } 

    props.put("mail.smtp.port", _port); 
    props.put("mail.smtp.socketFactory.port", _sport); 
    props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory"); 
    props.put("mail.smtp.socketFactory.fallback", "false"); 

    return props; 
   } 

   // the getters and setters 
  public String getBody() { 
   return _body; 
 } 

 public void setBody(String _body) { 
  this._body = _body; 
 }

  public void setTo(String[] toArr) {
     // TODO Auto-generated method stub
    this._to=toArr;
 }

public void setFrom(String string) {
    // TODO Auto-generated method stub
    this._from=string;
}

 public void setSubject(String string) {
    // TODO Auto-generated method stub
    this._subject=string;
  }  


   }

@Anthony Dahanne 2013-06-18 03:28:11

Did you consider using Apache Commons Net ? Since 3.3, just one jar (and you can depend on it using gradle or maven) and you're done : http://blog.dahanne.net/2013/06/17/sending-a-mail-in-java-and-android-with-apache-commons-net/

@droopie 2012-10-19 03:55:14

here is an alt version that also works for me and has attachments (posted already above but complete version unlike the source link, which people posted they cant get it to work since its missing data)

import java.util.Date; 
import java.util.Properties; 
import javax.activation.CommandMap; 
import javax.activation.DataHandler; 
import javax.activation.DataSource; 
import javax.activation.FileDataSource; 
import javax.activation.MailcapCommandMap; 
import javax.mail.BodyPart; 
import javax.mail.Multipart; 
import javax.mail.PasswordAuthentication; 
import javax.mail.Session; 
import javax.mail.Transport; 
import javax.mail.internet.InternetAddress; 
import javax.mail.internet.MimeBodyPart; 
import javax.mail.internet.MimeMessage; 
import javax.mail.internet.MimeMultipart; 


public class Mail extends javax.mail.Authenticator { 
  private String _user; 
  private String _pass; 

  private String[] _to; 
  private String _from; 

  private String _port; 
  private String _sport; 

  private String _host; 

  private String _subject; 
  private String _body; 

  private boolean _auth; 

  private boolean _debuggable; 

  private Multipart _multipart; 


  public Mail() { 
    _host = "smtp.gmail.com"; // default smtp server 
    _port = "465"; // default smtp port 
    _sport = "465"; // default socketfactory port 

    _user = ""; // username 
    _pass = ""; // password 
    _from = ""; // email sent from 
    _subject = ""; // email subject 
    _body = ""; // email body 

    _debuggable = false; // debug mode on or off - default off 
    _auth = true; // smtp authentication - default on 

    _multipart = new MimeMultipart(); 

    // There is something wrong with MailCap, javamail can not find a handler for the multipart/mixed part, so this bit needs to be added. 
    MailcapCommandMap mc = (MailcapCommandMap) CommandMap.getDefaultCommandMap(); 
    mc.addMailcap("text/html;; x-java-content-handler=com.sun.mail.handlers.text_html"); 
    mc.addMailcap("text/xml;; x-java-content-handler=com.sun.mail.handlers.text_xml"); 
    mc.addMailcap("text/plain;; x-java-content-handler=com.sun.mail.handlers.text_plain"); 
    mc.addMailcap("multipart/*;; x-java-content-handler=com.sun.mail.handlers.multipart_mixed"); 
    mc.addMailcap("message/rfc822;; x-java-content-handler=com.sun.mail.handlers.message_rfc822"); 
    CommandMap.setDefaultCommandMap(mc); 
  } 

  public Mail(String user, String pass) { 
    this(); 

    _user = user; 
    _pass = pass; 
  } 

  public boolean send() throws Exception { 
    Properties props = _setProperties(); 

    if(!_user.equals("") && !_pass.equals("") && _to.length > 0 && !_from.equals("") && !_subject.equals("") && !_body.equals("")) { 
      Session session = Session.getInstance(props, this); 

      MimeMessage msg = new MimeMessage(session); 

      msg.setFrom(new InternetAddress(_from)); 

      InternetAddress[] addressTo = new InternetAddress[_to.length]; 
      for (int i = 0; i < _to.length; i++) { 
        addressTo[i] = new InternetAddress(_to[i]); 
      } 
        msg.setRecipients(MimeMessage.RecipientType.TO, addressTo); 

      msg.setSubject(_subject); 
      msg.setSentDate(new Date()); 

      // setup message body 
      BodyPart messageBodyPart = new MimeBodyPart(); 
      messageBodyPart.setText(_body); 
      _multipart.addBodyPart(messageBodyPart); 

      // Put parts in message 
      msg.setContent(_multipart); 

      // send email 
      Transport.send(msg); 

      return true; 
    } else { 
      return false; 
    } 
  } 

  public void addAttachment(String filename) throws Exception { 
    BodyPart messageBodyPart = new MimeBodyPart(); 
    DataSource source = new FileDataSource(filename); 
    messageBodyPart.setDataHandler(new DataHandler(source)); 
    messageBodyPart.setFileName(filename); 

    _multipart.addBodyPart(messageBodyPart); 
  } 

  @Override 
  public PasswordAuthentication getPasswordAuthentication() { 
    return new PasswordAuthentication(_user, _pass); 
  } 

  private Properties _setProperties() { 
    Properties props = new Properties(); 

    props.put("mail.smtp.host", _host); 

    if(_debuggable) { 
      props.put("mail.debug", "true"); 
    } 

    if(_auth) { 
      props.put("mail.smtp.auth", "true"); 
    } 

    props.put("mail.smtp.port", _port); 
    props.put("mail.smtp.socketFactory.port", _sport); 
    props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory"); 
    props.put("mail.smtp.socketFactory.fallback", "false"); 

    return props; 
  } 

  // the getters and setters 
  public String getBody() { 
    return _body; 
  } 

  public void setBody(String _body) { 
    this._body = _body; 
  }

  public void setTo(String[] toArr) {
      // TODO Auto-generated method stub
      this._to=toArr;
  }

  public void setFrom(String string) {
      // TODO Auto-generated method stub
      this._from=string;
  }

  public void setSubject(String string) {
      // TODO Auto-generated method stub
      this._subject=string;
  }  

  // more of the getters and setters ….. 
}

and to call it in an activity...

@Override 
public void onCreate(Bundle icicle) { 
  super.onCreate(icicle); 
  setContentView(R.layout.main); 

  Button addImage = (Button) findViewById(R.id.send_email); 
  addImage.setOnClickListener(new View.OnClickListener() { 
    public void onClick(View view) { 
      Mail m = new Mail("[email protected]", "password"); 

      String[] toArr = {"[email protected]", "[email protected]"}; 
      m.setTo(toArr); 
      m.setFrom("[email protected]"); 
      m.setSubject("This is an email sent using my Mail JavaMail wrapper from an Android device."); 
      m.setBody("Email body."); 

      try { 
        m.addAttachment("/sdcard/filelocation"); 

        if(m.send()) { 
          Toast.makeText(MailApp.this, "Email was sent successfully.", Toast.LENGTH_LONG).show(); 
        } else { 
          Toast.makeText(MailApp.this, "Email was not sent.", Toast.LENGTH_LONG).show(); 
        } 
      } catch(Exception e) { 
        //Toast.makeText(MailApp.this, "There was a problem sending the email.", Toast.LENGTH_LONG).show(); 
        Log.e("MailApp", "Could not send email", e); 
      } 
    } 
  }); 
} 

@Trikaldarshi 2013-09-01 11:40:08

java.net.SocketException: Host is unresolved: smtp.gmail.com

@noob 2013-11-11 12:14:49

@KeyLimePiePhotonAndroid Add internet permission to your manifest

@roger_that 2014-03-19 06:02:30

how to use this code if I want to use any other email client such as of my org? Would changing just the host name and port be sufficient?

@T D Nguyen 2015-01-19 03:23:00

javax.mail.AuthenticationFailedException any solution for android 4.4.4?

@vijay 2015-03-05 06:08:36

javax.mail.AuthenticationFailedException error came what can i do?

@Razel Soco 2016-02-04 11:13:19

for javax.mail.AuthenticationFailedException , you need to turn on this setting google.com/settings/security/lesssecureapps

@jgrocha 2016-06-12 09:08:29

To solve Could not send email android.os.NetworkOnMainThreadException at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork it is necessary to see this solution stackoverflow.com/questions/25093546/…

@Saveen Dhiman 2017-03-30 07:31:51

Is there any way to make it important mail or set higher priority using this way?

@ashok reddy 2011-04-26 08:23:32

Thank you for your valuable information. Code is working fine. I am able to add attachment also by adding following code.

private Multipart _multipart; 
_multipart = new MimeMultipart(); 

public void addAttachment(String filename,String subject) throws Exception { 
    BodyPart messageBodyPart = new MimeBodyPart(); 
    DataSource source = new FileDataSource(filename); 
    messageBodyPart.setDataHandler(new DataHandler(source)); 
    messageBodyPart.setFileName(filename); 
    _multipart.addBodyPart(messageBodyPart);

    BodyPart messageBodyPart2 = new MimeBodyPart(); 
    messageBodyPart2.setText(subject); 

    _multipart.addBodyPart(messageBodyPart2); 
} 



message.setContent(_multipart);

@Chirag Shah 2011-10-31 11:50:14

where did you attach this code? can you pls tell me?

@Garbage 2013-01-23 09:12:13

Add this to GmailSender.java

@Calvin 2015-08-19 12:50:41

when i called setcontent it overwrote my body content. am i doing anything wrong. i want to add attachment with other textual body content

@user6649667 2016-11-09 12:57:01

for filename variable here, you have to specify file path. For example :String path = Environment.getExternalStorageDirectory().getPath() + "/temp_share.jpg";

@ManuV 2010-05-17 13:25:22

Could not connect to SMTP host: smtp.gmail.com, port: 465

Add this line in your manifest:

<uses-permission android:name="android.permission.INTERNET" />

@Avraham Shukron 2011-05-05 23:48:19

This is not the solution but without it it wont work

@Lena Schimmel 2010-01-08 11:32:12

SMTP

Using SMTP is one way to go, and the others have already pointed out ways how to do it. Just note that while doing this, you completely circumvent the built in mail app, and you will have to provide the address of the SMTP server, the user name and password for that server, either statically in your code, or query it from the user.

HTTP

Another way would involve a simple server side script, like php, that takes some URL parameters and uses them to send a mail. This way, you only need to make an HTTP request from the device (easily possible with the built in libraries) and don't need to store the SMTP login data on the device. This is one more indirection compared to direct SMTP usage, but because it's so very easy to make HTTP request and send mails from PHP, it might even be simpler than the direct way.

Mail Application

If the mail shall be send from the users default mail account that he already registered with the phone, you'd have to take some other approach. If you have enough time and experience, you might want to check the source code of the Android Email application to see if it offers some entry point to send a mail without user interaction (I don't know, but maybe there is one).

Maybe you even find a way to query the users account details (so you can use them for SMTP), though I highly doubt that this is possible, because it would be a huge security risk and Android is built rather securely.

@Kshitij Aggarwal 2010-01-08 11:21:30

You can use JavaMail API to handle your email tasks. JavaMail API is available in JavaEE package and its jar is available for download. Sadly it cannot be used directly in an Android application since it uses AWT components which are completely incompatible in Android.

You can find the Android port for JavaMail at the following location: http://code.google.com/p/javamail-android/

Add the jars to your application and use the SMTP method

@user1050755 2014-03-10 19:46:56

Any maven repository for that?

@Kshitij Aggarwal 2014-03-11 01:18:07

Sorry but I'm not aware of that

@artbristol 2015-04-05 11:14:09

I've ported the latest JavaMail and it's available on Maven Central under eu.ocathain.com.sun.mail:javax.mail:1.5.2

@CyberMew 2016-08-26 06:02:02

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