>     package com.ixpenseit.email;
>
>     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.MessagingException;
>     import javax.mail.Multipart;
>     import javax.mail.PasswordAuthentication;
>     import javax.mail.Session;
>     import javax.mail.Transport;
>     import javax.mail.internet.AddressException;
>     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 Multipart _multipart;
>
>       private Mail() {
>           _auth = true; // smtp authentication - default on
>           _multipart = new MimeMultipart();
>       }
>
>       public Mail(String smtpserver, String smtpport, String
> smtpsocketfactoryport) {
>           _host = smtpserver; // default smtp server
>           _port = smtpport; // default smtp port
>           _sport = smtpsocketfactoryport; // default socketfactory port
>           _auth = true; // smtp authentication - default on
>           _multipart = new MimeMultipart();
>           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 void setCredential(String username, String password) {
>           _user = username;
>           _pass = password;
>       }
>
>       public boolean send() throws AddressException, MessagingException
> {
>           Properties props = _setProperties();
>
>           if (Utility.isValidString(_user) && Utility.isValidString(_pass)
>                   && _to != null && Utility.isValidString(_from)
>                   && Utility.isValidString(_body)
>                   && Utility.isValidString(_subject) &&
> _to.length > 0
>
>           ) {
>               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 setEmail(String[] to, String from, String subject, String
> body) {
>           _to = to;
>           _body = body;
>           _subject = subject;
>           _from = from;
>
>       }
>
>       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);
>       }
>
>       public void addAttachment(String folder, String filename) throws
> Exception {
>           BodyPart messageBodyPart = new MimeBodyPart();
>           DataSource source = new FileDataSource(folder + "" +
> 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);
>           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;
>       }
>
>     }

public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.main);
            sendEmail();
        }
private void sendEmail()  {
        //Mail m = new Mail("smtp.gmail.com", "465", "465");

        Mail m = new Mail("smtp.dummy.com", "27", "27");
        m.setCredential("abc@dummy", "dummy");

        String[] toArr = { "to@gmail.com" };
        m.setEmail(toArr, "from@no-spam.com", "Auto Generated Expense Report",
                "Auto Generated Body.");

            try {
                if (m.send()) {
                    Toast.makeText(Email.this, "Email was sent successfully.",
                            Toast.LENGTH_LONG).show();
                } else {
                    Toast.makeText(Email.this, "Email was not sent.",
                            Toast.LENGTH_LONG).show();
                }
            } catch (AddressException e) {
                // TODO Auto-generated catch block
                Log.e("MailApp", "Could not send email", e);
            } catch (MessagingException e) {
                // TODO Auto-generated catch block
                Log.e("MailApp", "Could not send email", e);
            }