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Received email bouncing a domain with 554 5.7.1

Posted: Thu Aug 09, 2007 1:22 pm
by simonwelch
We have a problem with a particular domain sending us email, the bounced message is (554 5.7.1 Mail from this email address is not allowed and has been blocked.(no.151 pattern matched)). We have Scalix 10.0.0.3 in RHEL 4 with no anti-spam software installed, but security device on gateway with this domain added as a white list domain. When I test using telnet port 25 the messages is received fine (output below) but when sent from their mail server (Exchange I believe with Mail Marshal) the above bounce is generated.

They are convinced that our server is causing the problem but we have an identical server at another site with a different domain which receives mail from them fine.

I need some advise on where to start looking and how to test please.

Thanks in advance

Simon

RX: <220 scalix.expressandstar.co.uk ESMTP Scalix SMTP Relay 10.0.0.175;
Wed, 18 Jul 2007 11:18:15 +0100 (BST)>

TX: <HELO abcmail.abc.org.uk>

RX: <250 scalix.expressandstar.co.uk Hello abcmail.abc.org.uk [62.8.118.241], pleased to meet you>
TX: <MAIL FROM:<robin.burns@abc.org.uk>>
RX: <250 user@abc.org.uk... Sender ok>
TX: <RCPT TO:<user@expressandstar.co.uk>>
RX: <250 Ok>
TX: <DATA>
RX: <354 Enter mail, end with "." on a line by itself (relay) TX: RX: <554 5.7.1 Mail from this email address is not allowed and has been blocked.(no.151 pattern matched)
TX: <QUIT>