We have a small Courier-IMAP installation, 0.39.1 on Debian Linux, and use
Eudora 5.1 as client.  For the most part it works fine, but retrieving certain
attachments fails - Eudora says it cannot decode the attachment.

I tried using another IMAP server with the same message, and Eudora was
successful in decoding the attachment.  I turned on data stream logging in
Eudora.  Here are some hopefully relevant portions of the log - if the filename
starts with 'courier-' then it's Courier/Postfix, if it's 'cg-' then it's
CommuniGate Pro/Sendmail.

Retrieval of the message body (successful with both servers):

	http://web.sabi.net/ecibug/courier-sample-message-fetch.txt
	http://web.sabi.net/ecibug/cg-sample-message-fetch.txt

Retrieval of the attachment (works in CG, not in Courier):

	http://web.sabi.net/ecibug/courier-attachment-retrieval-failure.txt
	http://web.sabi.net/ecibug/cg-attachment-retrieval-success.txt

I used different physical servers for each test, so the actual content (headers)
of the messages are slightly different.  Here are the messages:

	http://web.sabi.net/ecibug/courier-message.txt
	http://web.sabi.net/ecibug/cg-message.txt

I've never worked on an IMAP client or server so I don't know what could be
going wrong here, but I would really appreciate if someone else with more of an
idea could take a look.  Please let me know if there's any other tests I can do
or information I can provide to help. I really like Courier otherwise, and
really don't want to have to switch IMAP servers _again_...

I posted this message to the courier-users list in September and didn't get any response. Since this problem only happens with Eudora, and continues with Eudora betas (last version I tried was 5.2b13), I am sending it to you as well.