Delete mail from server after receiving

Question

Hello,
after I've received a message from the mail server I want to delete this message on the server. How can I realise this?
Thanks JSCH

Answer 1

Hi,
This is from Sun tutorial.
Go through this. :)
Cheers.
Deleting messages involves working with the Flags associated with the messages. There are different flags for different states, some system-defined and some user-defined. The predefined flags are defined in the inner class Flags.Flag and are listed below:
Flags.Flag.ANSWERED
Flags.Flag.DELETED
Flags.Flag.DRAFT
Flags.Flag.FLAGGED
Flags.Flag.RECENT
Flags.Flag.SEEN
Flags.Flag.USER
Just because a flag exists doesn't mean the flag is supported by all mail servers/providers. For instance, besides deleting messages, the POP protocol supports none of them. Checking for new mail is not a POP task but one built into mail clients. To find out what flags are supported, ask the folder with getPermanentFlags().
To delete messages, you set the message's DELETED flag:
message.setFlag(Flags.Flag.DELETED, true);
Open up the folder in READ_WRITE mode first though:
folder.open(Folder.READ_WRITE);
Then, when you are done processing all messages, close the folder, passing in a true value to expunge the deleted messages.
folder.close(true);
There is an expunge() method of Folder that can be used to delete the messages. However, it doesn't work for Sun's POP3 provider. Other providers may or may not implement the capabilities. It will more than likely be implemented for IMAP providers. Because POP only supports single access to the mailbox, you have to close the folder to delete the messages with Sun's provider.
To unset a flag, just pass false to the setFlag() method. To see if a flag is set, check with isSet().