Very slow mail delivery

[defkorns]

Hello,

i installed your free version of MailScanner on two of our servers with cpanel.

First couple of days things seemed to work great, but after our clients started complaining that the emails are not being delivered in time, sometimes with 4 or 5 hours delay.

i sent an email from my personal mail (xxx[at]mydomain[dot]com) to an gmail account and took one hour to deliver:

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# cat /var/log/exim_mainlog | grep 1SRneY-0002Zw-F9
2012-05-08 16:52:50 1SRneY-0002Zw-F9 <= xxx[at]mydomain[dot]com H=(mypc) [xxx.xxx.xxx.xxx]:51106 P=esmtpa A=dovecot_login:xxx[at]mydomain[dot]com S=67833 id=!&!AAAAAAAAAAAYAAAAAAAAAAhhcKQeAQ5DpQ1kkYEP/YzCgAAAEAAAAMht6OF2WidLhzaKVs60DBIBAAAAAA==[at]mydomain[dot]com T="password" for yyyy[at]gmail[dot]com

2012-05-08 17:52:33 cwd=/var/spool/MailScanner/incoming/32610 34 args: /usr/sbin/exim -C /etc/exim_outgoing.conf -Mc 1SRngh-0002yV-6Z 1SRnZF-0001HM-0D 1SRngF-0002s3-JK 1SRngY-0002v9-D1 1SRnOh-0007Iz-1b 1SRnNb-00073i-AJ 1SRnVh-0000QR-59 1SRnaZ-0001bC-Ra 1SRnZh-0001Ny-Oo 1SRnOh-0007Jw-Hh 1SRneb-0002af-GW 1SRnaY-0001aK-80 1SRnZZ-0001Mi-Qu 1SRnYh-00018W-Ae 1SRnUZ-00009d-KI 1SRnMh-0006pz-5w 1SRnQb-0007iD-SX 1SRnZF-0001HP-ST 1SRnWZ-0000d0-Mh 1SRnKZ-0006QM-Md 1SRneY-0002Zw-F9 1SRnfJ-0002hU-SE 1SRnHh-0005eL-4N 1SRnQl-0007jn-Mj 1SRneh-0002bL-SK 1SRnMh-0006py-Vf 1SRngF-0002s6-Kd 1SRnHY-0005bg-Si 1SRnch-00028o-Sv 1SRnWh-0000ed-VW

2012-05-08 17:53:03 1SRneY-0002Zw-F9 SMTP connection outbound 1336499583 1SRneY-0002Zw-F9 mydomain[dot]com yyyy[at]gmail[dot]com
2012-05-08 17:53:05 1SRneY-0002Zw-F9 => yyyy[at]gmail[dot]com R=dkim_lookuphost T=dkim_remote_smtp H=gmail-smtp-in[dot]l[dot]google[dot]com [209.85.225.27] X=TLSv1:RC4-SHA:128
2012-05-08 17:53:05 1SRneY-0002Zw-F9 Completed

Can you help me?
Server #1 specs:

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Intel(R) Xeon(R) CPU 5150 @ 2.66GHz  - Cache 4096 KB
10Gb ram

Server #2 specs:

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2x AMD Opteron 6164 HE 12-Core
12Gb ram

[Sergio]

Have you checked your resolvers?

[defkorns]

the resolvers are fine. at the moment i disabled mailscanner temporarely and the mail flow on both servers is back to normal, with all mails being delivered on time.
Once i enable MS again thing revert very quickly

[Sergio]

Check the file:
/usr/mailscanner/bin/MailScanner

And look if the first line has this:
#!/usr/bin/perl -I/usr/mailscanner/lib -U

If you don't have the "-U" add it to that line and after that restart MailScanner.

[defkorns]

i've added -U to as sugested. but still the same. i quit and removed mailscanner from the server.

I'll contact my boss to see if he wants to buy configserver cpanel version. Perhaps is better if they install it.