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Old 05-06-2012, 12:33 PM   #1
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Registered: May 2012
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Postfix returns FQDN instead of domain name in HELO


I am managing email for some people with domain I use Postfix. I only have enough linux knowledge to try to fix issues as they arise. I am totally unable to fix the following proble.

The hosting server has multiple domains hosted on it apart from The server hostname is

When I send an mail as to a person at, postfix attempts to deliver the message to the equifax user. Equifax's smtp server rejects this with 54
Transaction Failed Spam Message not queued. (in reply to end of DATA command)

I then sent a message to I noticed that the HELO command returns my server hostname rather than the domain I am sending mail from.

<>: host[] said:
550 HELO for IP was "" (in reply to
RCPT TO command)

I believe if I can configure postfix to send in response to HELO the problem will be resolved.

I have a rDNS and PTR record setup. It appears to be fine. I checked on the internet.

Any help you can provide is much appreciated.

Thank you very much



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