Problems retrieving emails from gmail in Android app

Question

I'm using the java mail api built into java to get the mail of a user from their gmail box, most of the code i found in another SO question. And I'm able to pull most of the information i want correctly, like the subject, senders and other info from my mailbox.

Everything works great except when i go to pull the "content" of the message it doesnt always pull the content of the message. Only like 1 in 10 times it works. The other 9 times it just finds "javax.mail.internet.MimeMultipart@40e9c920"

My code is below. I'm printing the output into LogCat to test. Thanks in advance.

Properties props = System.getProperties();
            Session session = Session.getDefaultInstance(props, null);
            Store store = session.getStore("imaps");
            store.connect("imap.gmail.com", "Email address here",
                    "password here");
            Folder inbox = store.getFolder("Inbox");
            inbox.open(Folder.READ_ONLY);
            Message messages[] = inbox.getMessages();
            for (Message message : messages)
                Log.d("Email", message + "");
            Message message[] = inbox.getMessages();
    
                    for (int i = 0; i < 25; i++) {
                        Log.d("From", message[i].getFrom()[0] + "");
                        Log.d("Subject", message[i].getSubject() + "");
                        String content = message[i].getContent().toString();
                        Log.d("content", content + "");
                        
                    }

Edit: After some additional research I've found it has something to do with reading a multipart email with JavaMail

score 3 · Accepted Answer · answered Dec 24 '11 at 16:48

If anyone else has this problem the reason it wasn't working all the time is that when it found multipart messages it was unable to read them. Below is the solution to read multipart emails. I found most of the code on this website.

String s = message[i].getContent() + "";

                    if(s.indexOf("MimeMultipart") != -1){
                        Multipart multipart = (Multipart) message[i].getContent();

                          for (int x = 0; x < multipart.getCount(); x++) {
                          BodyPart bodyPart = multipart.getBodyPart(x);

                          String disposition = bodyPart.getDisposition();
                          //Log.d("disposition", disposition + "");

                          if (disposition != null && (disposition.equals(BodyPart.ATTACHMENT))) {
                              System.out.println("Mail have some attachment : ");

                              DataHandler handler = bodyPart.getDataHandler();
                              System.out.println("file name : " + handler.getName());
                              } else {
                              System.out.println(bodyPart.getContent());
                              }
                              }
                              System.out.println();



                          }

                    else
                        Log.d("Content", message[i].getContent() + "");

                }

i didnt copy your answer but your logic helped me alot. – Gagan Tiwari Apr 06 '12 at 12:30 — Gagan Tiwari, Apr 06 '12 at 12:30

score 2 · Answer 2 · edited Dec 24 '11 at 18:30

2

Try this,

imap.gmail.com replaced by smtp.gmail.com

edited Dec 24 '11 at 18:30

R.daneel.olivaw

2,681
21
31

answered Dec 24 '11 at 05:22

Lucifer

29,392
25
90
143

Thanks but its still the same :/ – Peter Dec 24 '11 at 05:24
I think you need to add port as well. – Lucifer Dec 24 '11 at 05:27
I'm sorry but how would I do that? – Peter Dec 24 '11 at 05:27
checkout this link http://support.google.com/mail/bin/answer.py?hl=en&answer=114408 – Lucifer Dec 24 '11 at 05:35
Probably there would be method like store.port(465); try checking it – Lucifer Dec 24 '11 at 05:40
Added the port number but still no luck :/ – Peter Dec 24 '11 at 05:59
does your inbox has 25 messages ? as you are using 25 in loop variable – Lucifer Dec 24 '11 at 06:02
I use 25 because my inbox has hundreds of messages and i wanted to limit the test to 25. Also i found else ware my issue has something to do with trying to read the contents of multipart messages. Thank you for your help though – Peter Dec 24 '11 at 06:10
you welcome dear, sorry that my knowledge was limited. so this was all i could help you. – Lucifer Dec 24 '11 at 06:13
Hey I'll take any help I can get :) – Peter Dec 24 '11 at 06:14
sure Peter, this website is for that purpose only. Knowledge sharring is a part of learning. – Lucifer Dec 24 '11 at 06:15

Problems retrieving emails from gmail in Android app

2 Answers2

Linked