MCP-Checker (MCP timed out) - Answer: MCP spamassassin timing
out
Quentin Campbell
Q.G.Campbell at newcastle.ac.uk
Fri Jun 2 14:22:13 IST 2006
Have identified the cause and found a work around but am worried that a
simple message could give rise to this problem.
Am getting the MCP checker "timed out" message because the invocation of
'spamassassin' that is run for MCP processing is timing out for the
messages in question. It will do this even if I have an _empty_ 'mcp'
subdirectory!
I note from MailScanner.conf in 4.51.6-1 that the timeout values for the
MCP and non-MCP invocations of 'spamassassin' are different. For the
former it is only 10 seconds while for the latter it is 75 seconds! That
explains why I only see the probem when the MCP check is done. The
default values set by Julian are:
SpamAssassin Timeout = 75
MCP SpamAssassin Timeout = 10
The work around was to change in MailScanner.conf the 'MCP SpamAssassin
Timeout' value from 10 to 75 (seconds).
Quentin
---
PHONE: +44 191 222 8209 Information Systems and Services (ISS),
University of Newcastle,
Newcastle upon Tyne,
FAX: +44 191 222 8765 United Kingdom, NE1 7RU.
------------------------------------------------------------------------
Any opinion expressed above is mine and not that of Newcastle
University.
>-----Original Message-----
>From: mailscanner-bounces at lists.mailscanner.info
>[mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf
>Of Quentin Campbell
>Sent: 02 June 2006 08:54
>To: MailScanner discussion
>Subject: RE: MCP-Checker (MCP timed out) - what is happening?
>
>Jeremy
>
>Have run 'spamassassin --siteconfigpath=/etc/MailScanner/mcp
>--lint' and
>this shows no problems. In my case I have more than one *.cf file in
>~/mcp.
>
>I have found 59 instances of this problem occurring over the last 8
>weeks. That is a tiny number compared to the 1,000,000 or so
>messages we
>receive per day so the problem seems to arise out of a very special set
>of circumstances.
>
>Not just mail from 'intl.pepsico.com' is involved although that site
>accounts for a significant proportion of the 59 cases. At least two
>different people sending mail from that site have beem affected.
>
>A full extract of log records for one such instance is:
>
>Jun 1 10:12:26 cheviot2 sendmail[25995]: k519CLJN025995:
>from=<xxx.yyy at intl.pepsico.com>, size=2953, class=0, nrcpts=1,
>msgid=<933D22EF8B0CA249BC3C5056C06FCE2201FCBB9D at pepwmu00262.cww
>.pep.pvt>
>, proto=ESMTP, daemon=MTA, relay=pepwmz00096.pbsg.com [195.33.104.10]
>
>Jun 1 10:12:26 cheviot2 sendmail[25995]: k519CLJN025995: Milter add:
>header: Received-SPF: none (cheviot2.ncl.ac.uk: domain of
>xxx.yyy at intl.pepsico.com does not designate permitted sender hosts)
>
>Jun 1 10:12:26 cheviot2 sendmail[25995]: k519CLJN025995:
>to=<aaa.bbb at newcastle.ac.uk>, delay=00:00:00, mailer=esmtp, pri=32953,
>stat=queued
>
>Jun 1 10:12:39 cheviot2 MailScanner[22318]: Message
>k519CLJN025995 from
>195.33.104.10 (xxx.yyy at intl.pepsico.com) to newcastle.ac.uk is MCP,
>MCP-Checker (MCP timed out)
>
>Jun 1 10:12:39 cheviot2 MailScanner[22318]: MCP Actions: message
>k519CLJN025995 actions are deliver
>
>At this point the message disappears from the queue. It is not
>delivered
>and the log records above confirm this.
>
>I am running with MailScanner-4.51.6-1 and SpamAssassin 3.1.1.
>
>Quentin
>---
>PHONE: +44 191 222 8209 Information Systems and Services (ISS),
> University of Newcastle,
> Newcastle upon Tyne,
>FAX: +44 191 222 8765 United Kingdom, NE1 7RU.
>---------------------------------------------------------------
>---------
>Any opinion expressed above is mine and not that of Newcastle
>University.
>
>
>>-----Original Message-----
>>From: mailscanner-bounces at lists.mailscanner.info
>>[mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf
>>Of Jeremy Blonde
>>Sent: 01 June 2006 17:08
>>To: MailScanner discussion
>>Subject: RE: MCP-Checker (MCP timed out) - what is ahppening?
>>
>>I ran into this same problem. I had to delete my existing mcp
>>rule file
>>and re-create it. Apparently, I had added a typo somewhere.
>>
>>
>>Jeremy Blonde
>>Instructional Technology - Server Support
>>Grant Joint Union School District
>>
>>
>>-----Original Message-----
>>From: mailscanner-bounces at lists.mailscanner.info
>>[mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf
>>Of Quentin
>>Campbell
>>Sent: Thursday, June 01, 2006 9:00 AM
>>To: mailscanner at lists.mailscanner.info
>>Subject: MCP-Checker (MCP timed out) - what is ahppening?
>>
>>I am seeing for one sender the following record in the logs:
>>
>>Jun 1 10:13:57 cheviot1 MailScanner[425]: Message k519DcIG001362 from
>>195.33.10 4.10 (xxx.yyy at intl.pepsico.com) to newcastle.ac.uk is MCP,
>>MCP-Checker (MCP timed out)
>>
>>The mail is disappearing. What might be the cause?
>>
>>Quentin
>>---
>>PHONE: +44 191 222 8209 Information Systems and Services (ISS),
>> University of Newcastle,
>> Newcastle upon Tyne,
>>FAX: +44 191 222 8765 United Kingdom, NE1 7RU.
>>---------------------------------------------------------------
>>---------
>>Any opinion expressed above is mine and not that of Newcastle
>>University.
>>--
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>>
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>>
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>>
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