[rt-users] bad rfc822 field name?

[Chris Pascoe]

Without looking at the code at all, I'm guessing there is some code in
place designed to line wrap outgoing mail at a fixed width, and it's also
operating on the header portion of the message.  So a very long subject
line gets a "\n" whacked in the middle of it, thus making the rest of the
subject line look like it's starting a new rfc822 field... and then
baulking.  This is consistent with the "no blank line after subject: in
template" that matt talks about.

The outbound message ends up looking like:

-- start mail
To: blah
From: blah
Subject: blah blah blah blah blah blah blah blah blah blah blah blah \n
testing 12 3 4 5  6

message body
-- end mail

Which is obviously evil :).  Again, I haven't looked at the code, so I
can't suggest a fix, but hope this helps put someone on the right track.

Chris