Cone 20040622

Download: http://www.courier-mta.org/download.php#cone

New stuff:

Remove individual attachments from messages.  After downloading attachments 
in a message, optionally delete them.  That is, keep the message, lose the 
attachments.

Caution: works only with messages in local mail folders, IMAP folders, and 
POP3 maildrops.  Does not work with POP3 folders or news folders.  Lightly 
tested with IMAP, still needs to be tested with local mail folders, and all 
kinds of bizarre attachments and multipart MIME sections.

Test using duplicate copies of original messages. If something gets screwed 
up, the original message may get lost forever.

Notes: this might seem like a minor enhancement, but a lot of work lies 
beneath.  This is implemented by downloading the original message, removing 
the selected MIME attachments, then reassembling the message from the 
remaining pieces, uploading the newly-constructed message to the original 
folder, then removing the original message.  All in one step.

Later, I intend to add Courier-IMAP-specific protocol extensions which 
eliminate the download/upload step, and execute the necessary logic on the 
server.

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