Timo,

You are probably correct in assuming that it is a client app. issue although I have not had a problem since I posted the email below.

Thanks for all your hard work in making Dovecot a solid MDA.

Brad

On 10/15/2006 12:36 PM, Timo Sirainen wrote:

On Tue, 2006-08-29 at 05:03 -0700, Brad Bateman wrote:

I have the exact same issue.  I just figured that it is malformed MIME
spam that Dovecot cannot digest.  It can happen on any of  our mail
clients: Outlook, OE, TB at the frequency of about every 3 ~ 6 months.
Delete the offending mail, and harmony is returned. 
Next time it happens, I'll try to do an autopsy on the bad mail and
try to determine what is different about it.

..

On Tue, 2006-08-29 at 07:31 -0700, Ken A wrote:

We see it here as well, though I'm not sure it's exactly the same 
problem. It's always been a very short message with incorrect
headers, 
_no_ subject header and no message body. Dovecot can't digest it.

I have a bit of trouble believing that it's Dovecot that can't handle
it. Much more likely is that the clients or something between them can't
handle it. But if you can show that Dovecot can't handle some specific
message correctly I'd really like to know about it.