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Re: 451 server configuration error when receiving incoming e-mails from mail.gmx.de only on Postfix 1.1.11

From: Wietse Venema (wietseporcupine.org)
Date: Tue Dec 07 2004 - 10:37:20 CST


Carsten Kuckuk:
> Dear List members,
>
> I've run my Linux server with Postfix as MTA on it for well over a year
> in the same configuration (only changes to an ip whitelist so that
> important mail doesn't get blocked by RBLs) without any real problems. A
> few weeks ago I started noticing problems receiving e-mail from GMX.
> Here's what I see in my logs:
>
> >>>>>
> Dec 7 17:03:34 p15120109 postfix/smtpd[23922]: connect from
> mail.gmx.de[213.165.64.20]
> Dec 7 17:03:34 p15120109 postfix/smtpd[23922]: 87F5734C03B:
> client=mail.gmx.de[213.165.64.20]
> Dec 7 17:03:34 p15120109 postfix/smtpd[23922]: warning: unknown smtpd
> restriction: "OK"

Please, pay attention to the above line.

        Wietse