Double Carriage return breaks header ..

[Patrik Henningsson]

> lists-cyrus at tripnet.se wrote:
> 
>> Hello list,
>>
>> We're currently running Cyrus IMAP 2.2.8 and having the following 
>> problem.
>> When a message arrives via LMTP with the header "Subject:
>> SUBJECTLINErrn" the message i broken and all other header-lines after
>> this line are put in the body! This is not cute at all ..
>>
>> I suppose this "conversion" happens in spool_copy_msg()?
> 
> 
> Cyrus isn't converting anything.  What you're seeing is GIGO (garbage 
> in, garbage out).  The message is broken per RFC 2822.  You should 
> complain about the software that generated this message.

The problem is that most of these messages is SPAM and i don't think 
they care that much ...
And these SPAM are going right trough our sieve-filter because the
header "X-Spam-Status:" is in the body.
I agree at the GIGO part but i must be able to filter out these messages.

>>
>> The message pass through Exim, Amavis and SpamAssassin without any
>> problem before it's reaching Cyrus.
>>
>> Somebody have an idea how to correct this properly?
> 
> 
> If you want to build more intelligence into Cyrus' message parsing, we'd 
> be glad to look at a patch, but we're not going to expend a lot of 
> energy trying to "fix" broken messages.

Maybe we should look how we handling this in the sieve-filter code 
instead of trying to fix it in spool_copy_msg()?

/PH
---
Cyrus Home Page: http://asg.web.cmu.edu/cyrus
Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu
List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html