huge mail hangs lmtpd

Michael Menge michael.menge at
Wed Apr 11 05:23:10 EDT 2007


I had again problems with an huge mail and lmtpd. I believe this is  
caused by the sieve regex filtering of the huge mail.

The lmtp uses about twice the size of the email of mem and all the cpu-time
it can get. Then postfix gets a time out, but the lmtpd still keeps running
and does not finish its work. At the next delivery attemt from postfix a new
lmtpd gets huge and takes as much cpu time it can get, while the first  
lmtp is still running and so on.

We run cyrus 2.3.8 and postfix 2.2.9 on a SLES10 system (pcre-6.4)
I tried the rcpe-patch from fastmail to solve this problem, but delivering the
same mail to the patched cyrus still showed the same behavior. Has  
anyone else had this problem and had success with the patch from  

We used the same regex with procmail and had no problems like this.
I would like to help to solve this problem.


      Michael Menge

M.Menge                                 Tel.: (49) 7071/29-70316
Universitaet Tuebingen                  Fax.: (49) 7071/29-5912
Zentrum fuer Datenverarbeitung          mail:  
michael.menge at
Waechterstrasse 76
72074 Tuebingen
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