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From: "Juan Devas" on 18 May 2010 07:27
Hi,

I have setup postfix as an mx backup using:

relay_domains = betterthanbacon.com
defer_transports = smtp

Works ok, but upon browsing the log /var/log/mail.log, I have found the following entry:

May 18 13:06:56 ks postfix/error[14135]: 781A83E1F9: to=<eweivivuhi7489(a)blokowe.
pl>, relay=none, delay=0.14, delays=0.09/0.04/0/0.01, dsn=4.3.2, status=deferred
(deferred transport)

Does this mean my postfix server has accepted an email to eweivivuhi7489(a)blokowe.pl and is now waiting for delivery?

I have tried to telnet to my postfix on port 25 using the rcpt to: command to the same email address, but I got a "relay denied" message.

How do I track down and fix this problem so that postfix will only accept emails for relay_domains?

Thanks!

From: Wietse Venema on 18 May 2010 08:15
Juan Devas:
> Hi,
>
> I have setup postfix as an mx backup using:
>
> relay_domains = betterthanbacon.com
> defer_transports = smtp
>
> Works ok, but upon browsing the log /var/log/mail.log, I have found the following entry:
>
> May 18 13:06:56 ks postfix/error[14135]: 781A83E1F9: to=<eweivivuhi7489(a)blokowe.
> pl>, relay=none, delay=0.14, delays=0.09/0.04/0/0.01, dsn=4.3.2, status=deferred
> (deferred transport)
>
> Does this mean my postfix server has accepted an email to eweivivuhi7489(a)blokowe.pl and is now waiting for delivery?
>
> I have tried to telnet to my postfix on port 25 using the rcpt to: command to the same email address, but I got a "relay denied" message.
>
> How do I track down and fix this problem so that postfix will only accept emails for relay_domains?
>
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