551 mail refused - ReadList.com

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551 mail refused
\ Axel.Gruner (13 Mar 2008)
. \ Bastian Blank (13 Mar 2008)

Subject:	551 mail refused
Group:	Postfix-users
From:	Axel.Gruner
Date:	13 Mar 2008

Hi,

ok, i can now receive mails and the zertificon is now getting mails and
push these back to our postfix.

The problem is sending mails from the inside to the outside.

Our postfix main.cf:
content_filter = smgw:[10.4.1.253]:10025

Our postfix master.cf:
smgw unix - - n - 2 smtp
-o smtp_data_done_timeout=1200
-o disable_dns_lookups=yes

10.4.1.252:10025 inet n - n - - smtpd
-o content_filter=smtp-amavis:[127.0.0.1]:10024

smtp-amavis unix - - n - 2 smtp -o
smtp_data_done_timeout=1200
-o disable_dns_lookups=yes

127.0.0.1:10025 inet n - n - - smtpd
-o content_filter=
-o local_recipient_maps=
-o relay_recipient_maps=
-o smtpd_restriction_classes=
-o smtpd_client_restrictions=
-o smtpd_helo_restrictions=
-o smtpd_sender_restrictions= -o
smtpd_recipient_restrictions=permit_mynetworks,reject
-o mynetworks=127.0.0.0/8 -o strict_rfc821_envelopes=yes

The error i get, if i try to send an email from the inside to the outside
is:

Mar 13 12:57:22 sffwb postfix/smtp[84018]: 4E9267F034: to=<asg>,
relay=10.4.1.253[10.4.1.253], delay=0, status=bounced (host 10.4.1.253
[10.4.1.253] said: 551 mail refused (in reply to end of DATA command))

Thats what i see in our maillog on our Postfix. The log of the zertificon
mailserver (also postfix) is empty.

So, what could be the problem why 10.4.1.253 (Zertificon postfix) is
refusing the mails?

Cheers,

Axel