[Tickets #1770] NEW: multipart/mixed messages results in "invalid mail header" on Cyrus

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Ticket URL: http://bugs.horde.org/ticket/?id=1770
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 Ticket             | 1770
 Created By         | worf at 4uchat.de
 Summary            | multipart/mixed messages results in "invalid mail header" on Cyrus
 Queue              | IMP
 Version            | 4.0.3
 State              | Unconfirmed
 Priority           | 3. High
 Type               | Bug
 Owners             | 
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worf at 4uchat.de (2005-04-12 10:47) wrote:

Hello,

IMP-H3-4.0.3 has a nasty bug in multipart/mixed mime processing:

How to reproduce the bug:

Write a mail with binary attachment or a GPG signed mail.

Cyrus denies to process mail with error:
LMTP error after DATA: 554 5.6.0 Message contains invalid header

IMP creates a strange line break after "multipart/mixed;"

Subject: afasfasfasffsaf
MIME-Version: 1.0
Content-Type: multipart/mixed;
	boundary="=_3cbrxxfxr2rk"
Content-Transfer-Encoding: 7bit
User-Agent: Internet Messaging Program (IMP) H3 (4.0.3)

IMP version 3.2.6 does not create such a line break, so these mails are
processed correctly:
Subject: test
MIME-Version: 1.0
Content-Type: multipart/mixed;
boundary="-MOQ1113327216054d5ddc0079b2dbbc447f2712baa3f9"
User-Agent: Internet Messaging Program (IMP) 3.2.6

That is really a show stopper in Cyrus environments.

regards
Christian