SOHO91/EHLO/500 5.3.3 Unrecognized command


We use a Cisco Soho 91 router and operate our own mail server. Recently, I noticed that every outgoing SMTP connection used just SMTP instead of ESMTP although the peer mail server was able to.

In the SMTP logs, I saw that the response to the EHLO command was

500 5.3.3 Unrecognized command

I found that the PIX firewall is known to apply an SMTP filter that can be switched of by the fixup command. But I found nothing for the Soho

91 router?

Has anyone an idea how to disable that?

-- Kind regards, Dominik

Reply to
Dominik Rappaport
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I could solve it my self:

no ip inspect name myfw esmtp

was what I have been looking for.

Kind regards, Dominik

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