[Bug 1251821] Re: Part x of 67 of a multipart message
mark at msapiro.net
Sat Nov 16 20:13:13 CET 2013
OK. So there are two issues. The first is that the attachment is sent in
67 or however many partial attachments and the second is that Mailman is
sending 67 copies of each partial message instead of just 1.
The first issue is due to the sending MUA (user's email client) breaking
the large attachment across multiple messages (presumably Content-Type:
message/partial) which have to be reassembled by the recipient's MUA.
This issue is strictly due to the sending MUA and has nothing to do with
Note that splitting messages into multiple message/partial messages is a
bad idea in general, both for security because most virus and spam
scanners work only with the individual partial messages rather than the
reassembled content, and because many MUAs don't know how to reassemble
the partial messages into a complete whole.
The second issue of Mailman sending multiple copies of each partial
message is a bug somewhere. It may be something in the cPanel Exim
Router/Transport definitions for Mailman or in cPanel Mailman or in
Mailman itself. It is hard to say without seeing server logs, but if you
could send a message with an attached PDF (preferably not TOO big) in
the same way it's sent to Mailman to mark at msapiro.net, I can do some
You probably do not have access to any server logs. If I don't find
anything, you'll have to take this up with your cPanel host. See the FAQ
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Part x of 67 of a multipart message
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