How to investigate timeouts?

[Ugo Bellavance]

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Jody Cleveland wrote:
>>Then, what is 'mail'?
> 
> 
> 'mail' is the Exchange server.

Huh?  That means that your exchange server is open on the net?  Ah, I
tried a connexion to it, you're using the 'old way' of dealing with
that.  Here's a simpler way (IMHO).

http://wiki.mailscanner.info/doku.php?id=documentation:configuration:mta:sendmail:how_to:setup_a_gateway

> 
> 
>>What kind of problem exactly?  A spamassassin timeout?  I think that
>>most of the people will have their MailScanner send scanned mail
>>directly to the destination server (the exchange in your case).
> 
> 
> Either a timeout, or hardware failure, lockup, whatever.
> 

Using regular MX records, if one of your server doesn't respond, the
other will.

> 
>>You should give a priority to fix your timeouts first.  Please 
>>give us more details on the timeouts so that we can help you with
> 
> that.  Once your
> 
>>timeout issues are solved, you'll be able to deliver directly from
>>destiny to your exchange.
> 
> 
> I looked at one message that ended up going through mystique, rather
> than destiny. Here's the header:
> 
> Received: from users.trulyamazingoffers.com
> (users.trulyamazingoffers.com [206.113.114.110])
> by mystique.winnefox.org (Postfix) with SMTP id 31BD137C10A
> for <_ at mail.winnefox.org>; Tue, 19 Jul 2005 15:39:25 -0500 (CDT)
> From: "Camera Phone Incentive"
> <purge-nb-763763M at users.trulyamazingoffers.com>
> To: _ at mail.winnefox.org
> Subject: Camera Phone Giveaway
> Date: Tue, 19 Jul 2005 15:00:00 -0400
> MIME-Version: 1.0
> Content-Type: text/plain; charset="iso-8859-1"
> Content-Transfer-Encoding: 8bit
> List-Unsubscribe: <mailto:leave-nb-763763M at users.trulyamazingoffers.com>
> Message-Id:
> <LYRIS-763763-740-2005.07.19-15.00.21--_#mail.winnefox.org at users.trulyam
> azingoffers.com>
> 
> There's absolutely nothing in the maillog on destiny in regards to this
> message. I look at the maillog on mystique, and found this:
> 
> Jul 19 15:39:26 mystique MailScanner[4996]: New Batch: Scanning 1
> messages, 2950 bytes 
> Jul 19 15:39:26 mystique MailScanner[4996]: MCP Checks completed at 2950
> bytes per second 
> Jul 19 15:39:26 mystique MailScanner[4996]: Spam Checks: Starting 
> Jul 19 15:39:26 mystique MailScanner[4996]: RBL checks: 31BD137C10A
> found in SBL+XBL 
> Jul 19 15:39:26 mystique MailScanner[4996]: Message 31BD137C10A from
> 206.113.114.110 (bounce-nb-763763 at users.trulyamazingoffers.com) to
> mail.winnefox.org is spam, SBL+XBL, SpamAssassin (score=6.83, required
> 5, BAYES_80 2.00, FROM_OFFERS 1.49, RCVD_IN_SBL 0.11, URIBL_JP_SURBL
> 2.46, URI_OFFERS 0.77) 
> Jul 19 15:39:26 mystique MailScanner[4996]: Spam Checks: Found 1 spam
> messages 
> Jul 19 15:39:26 mystique MailScanner[4996]: Spam Actions: message
> 31BD137C10A actions are store,deliver,striphtml 
> Jul 19 15:39:26 mystique MailScanner[4996]: Spam Checks completed at
> 2950 bytes per second 
> Jul 19 15:39:27 mystique MailScanner[4996]: Virus and Content Scanning:
> Starting 
> Jul 19 15:39:27 mystique MailScanner[4996]: Virus Scanning completed at
> 2950 bytes per second 
> Jul 19 15:39:27 mystique MailScanner[4996]: Requeue: 31BD137C10A to
> 6D99137C10B 
> Jul 19 15:39:27 mystique MailScanner[4996]: Uninfected: Delivered 1
> messages 
> Jul 19 15:39:27 mystique MailScanner[4996]: Virus Processing completed
> at 2950 bytes per second 
> Jul 19 15:39:27 mystique MailScanner[4996]: Disinfection completed at
> 2950 bytes per second 
> Jul 19 15:39:27 mystique MailScanner[4996]: Batch completed at 2950
> bytes per second (2950 / 1) 
> 
> Since there's no mention of it on destiny, is there a message to search
> for in the maillog that may indicate the message timing out, or other
> problems? Is there a different log file for errors?
> 

grep killed /var/log/maillog

If you do

grep timeout /var/log/maillog, you'll have all SMTP timeouts, wich are
normal (it is your server trying to reach other servers on the net).

> - jody
> 

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