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SuSe + Postfix ... lagged

Posted on 2004-10-28
Medium Priority
Last Modified: 2013-12-16

my problem is that the mailserver on my system isn't sending messages any more and as I can see it is lagged because of many mail queues.

/var/log/mail is showing many messages like:
Oct 29 01:51:23 myserver postfix/smtp[1476]: connect to angelfire.com[]: Connection timed out (port 25)
Oct 29 01:51:23 myserver postfix/smtp[1476]: 87CD7490B7A: to=<earlnjoy@angelfire.com>, relay=none, delay=182366, status=deferred (...
Oct 29 01:51:23 myserver postfix/qmgr[1331]: 8DD4A492478: to=<dominicl@angelfire.com>, relay=none, delay=182037, status=deferred (...
Oct 29 01:51:24 myserver postfix/qmgr[1331]: 87D414945E9: to=<p.argo@angelfire.com>, relay=none, delay=179369, status=deferred (co...
Oct 29 01:51:24 myserver postfix/qmgr[1331]: CEC1E49D061: from=<wwwrun@myserver.mydomain.com>, size=6270, nrcpt=1 (queue active)...
Oct 29 01:51:24 myserver postfix/qmgr[1331]: DEFAD494934: from=<wwwrun@myserver.mydomain.com>, size=2377, nrcpt=1 (queue active)..
Oct 29 01:51:24 myserver postfix/qmgr[1331]: CE18449D2D2: from=<wwwrun@myserver.mydomain.com>, size=6272, nrcpt=1 (queue active)..

Otherwise "relay" is activated for security reasons and without AUTH nobody can send anything here.

Does anybody has an idea why this mailserver is doing so and how could I solve this problem?!

Question by:BlueJ
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LVL 36

Expert Comment

ID: 12442834
So 'mailq' shows many mails stuck in the queue?

You are relaying all email to a specific mail server?
What server are you using? Is it the angelfire.com mnetioned in the log above?

Author Comment

ID: 12449460

Hello grblades,

With relaying, I meant the SMTP-auth.
I don't have any relay domains or relay hosts configured in main.cf

The restrictions configuration looks like:
smtpd_sender_restrictions = hash:/etc/postfix/access
smtpd_client_restrictions =
strict_rfc821_envelopes = no
smtpd_recipient_restrictions = permit_sasl_authenticated, reject_unauth_destination
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous

My server doesn't has anything with "angelfire.com" to do, it was just an example found in the logfile. They can be found many other hosts.

But what I notice that the most mails seems to be send with apache:
"Oct 30 01:04:54 p15125488 postfix/qmgr[23250]: 7447D492807: from=<wwwrun@myserver.mydomain.com>, size=6270, nrcpt=1 (queue active)"

Am I right ?

LVL 36

Expert Comment

ID: 12461451
Can you post the output of the 'mailq' command as this should show the reason why the emails were deferred.

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Author Comment

ID: 12465679
I had to delete all my mails in queue because the postfix server was nearly stoned. They were over 300,000 mails in queue.

Now I have nothing in queue but the webserver-user "wwwrun" is still sending suspicious mails:

Nov  1 19:22:06 myserver postfix/pickup[31560]: 6969D49004C: uid=30 from=<wwwrun>
Nov  1 19:22:06 myserver postfix/cleanup[31765]: 6969D49004C: message-id=<20041101182206.6969D49004C@myserver.mydomain.com>
Nov  1 19:22:06 myserver postfix/qmgr[31561]: 209F8490041: skipped, still being delivered
Nov  1 19:22:06 myserver postfix/qmgr[31561]: 3E859490045: from=<admin@staffadministrator.com>, size=3316, nrcpt=2 (queue active)  
Nov  1 19:22:06 myserver postfix/qmgr[31561]: 6969D49004C: from=<wwwrun@myserver.mydomain.com>, size=625, nrcpt=1 (queue active)

In the apache logfiles is nothing unusual.

LVL 36

Accepted Solution

grblades earned 500 total points
ID: 12465730
What emails should apache be sending?
Is it a public webserver?
Are you sure you dont have a form2mail script configured insecurely which people are using to send spam?

Can you stop postfix delivering email and then look at one of the mails in the queue to see what it contains?

Author Comment

ID: 12585486

Sorry for the late answer grblades, after I did a forced "flush" of the mailqueue the situation became normal.


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