[Linux] Postfix help

[Chris 'Chipper' Chiapusio]

On Tue, May 15, 2007 at 01:48:00PM -0400, Nicholas Saraniti wrote:
>try encapsulating the hostname in brackets in the config file... I
>believe this will force postfix to use this address and NOT lookup an MX
>record for the domain... i.e. [smtp.comcast.net] and see if that works...
>
>David Williams wrote:
>> Mike,
>>
>> Yes, the postfix box is on the Comcast network.
>>
>> How can I try and do this manually.  I know I need to telnet to port 25, but what do I do after that?
>>
>> Regards,
>> ____________________________________________
>> David Williams
>>  
>>

Nicholas is correct, from the postfix main.cf config file comments:

# In the case of SMTP, specify a domain, host, host:port, [host]:port,
# [address] or [address]:port; the form [host] turns off MX lookups.

if you look at the log which David ver smartly included you will see:

>>>>> suspended: Host or domain name not found. Name service error for
>>>>> name=smtp.comcast.net type=MX: Host not found, try again)

so, change:
relayhost = smtp.comcast.net
to:
relayhost = [smtp.comcast.net]

Chipper


(Props to Nicholas)


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