I am receiving emails from the server using the IMAP protocol like it is described here. This is working very fine and I can store the emails and attachments on the disk.
Question: Do I have the possibility to delete files from the Server, so that they are no longer available, when a client tries to receive all emails? If so, please tell me how.
In the Edit Account box click on the Options tab. Under the Server options section: Clear the check box Leave a copy of each message on the server. If you would like to leave messages on the server, check the box Delete messages from the server after and specify the number of days.
IMAP accounts provide several options to delete messages that aren't available in POP accounts. Tools -> Account Settings -> Account Name -> Server Settings -> "When I delete a message" has choices for "Move it to the Trash folder", "Mark it as deleted" and "Remove it immediately".
Iterate through the messages and type "Y" or "y" if you want to delete the message by invoking the method setFlag(Flags. Flag. DELETED, true) on the Message object.
The javax. mail. internet package defines classes that are specific to mail systems based on internet standards such as MIME, SMTP, POP3, and IMAP.
You should be able to do this via the standard APIs.
First you need to get a reference to the Message
(or messages) you want to delete - if you're successfully reading them then you're already able to do this. Now, there's no explicit delete() operation, but you can mark a message as deleted like so:
message.setFlag(Flags.Flag.DELETED, true);
This will mark the message as deleted (which is typically what a delete operation will do in a desktop IMAP client). In order to force the deleted messages to be expunged, when you're finished with the Folder
(s) in which they reside, call
folder.close(true);
where the true flag instructs the server to expunge all deleted messages.
And voila! The client should no longer see these messages when he connects to the server with any IMAP client.
EDIT:
Don't forget to open the folder in READ_WRITE mode otherwise the messages will not actually be deleted from the server.
folder.open(Folder.READ_WRITE);
See: http://java.sun.com/developer/onlineTraining/JavaMail/contents.html#JavaMailDeleting
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