This link might be helpful.....
http://www.jondev.net/articles/Sending_Emails_without_User_Intervention_%28no_Intents%29_in_Android
make changes in sendMail section for attachment..
public synchronized void sendMail(String subject, String body, String sender, String recipients, File attachment) throws Exception {
try{
MimeMessage message = new MimeMessage(session);
message.setSender(new InternetAddress(sender));
message.setSubject(subject);MimeBodyPart mbp1 = new MimeBodyPart();
mbp1.setText(body);
MimeBodyPart mbp2 = new MimeBodyPart();
FileDataSource fds = new FileDataSource(attachment);
mbp2.setDataHandler(new DataHandler(fds));
mbp2.setFileName(fds.getName());
Multipart mp = new MimeMultipart();
mp.addBodyPart(mbp1);
mp.addBodyPart(mbp2);
message.setContent(mp);
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){
}
}`
