[CentOS] postfix help. im clueless

Erick Perez eaperezh at gmail.com
Mon Jun 4 15:35:20 UTC 2007

Hi, I have been given the task to check on a postfix server that
presents the following error:
Let's say you use your hotmail account and then send a message to one
of my users. The postfix program running on the server responds:

Jun  4 10:21:25 mail postfix/smtp[29744]: 553E01079AD:
to=<email.elpanama at elpanama.com>, relay=localhost[],
delay=54253, status=deferred (host localhost[] said: 451
Unable to complete command, DNS not available or timed out (in reply
to MAIL FROM command))

first, why is giving me a timeout?
and second, why in the response the to= field has the domain name?

what things can i see in the main.cf?

Erick Perez


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