[CentOS] Not receiving mail

Ben McGinnes ben at adversary.org
Tue Oct 19 15:58:14 EDT 2010


On 20/10/10 5:42 AM, m.roth at 5-cent.us wrote:
> Ian Murray wrote:
>>
>>
>>> No the example above  shows a telnet to port 25 connecting - which I can
>>> reproduce too - but there  is no 220 response as there should be from a
>>
>> I am late to the thread (and I haven't a clue what we are talking about in
>> fact), but I get a 220 when I telnet into that IP address...
>>
>> Escape character is '^]'.
>> 220 mercury.localdomain ESMTP Postfix
> 
> Odd. Why would it say localdomain?

He probably has an incorrect myhostname or mydomain value in main.cf.
From the look of the postconf -n he posted, he hasn't specified either
of these.

From the relevant section in Dotan's postconf -n:

mydestination = $myhostname, localhost.$mydomain, localhost
newaliases_path = /usr/bin/newaliases.postfix

The equivalent section in mine (sanitised because copying & pasting is
not the solution):

mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain
mydomain = example.com
myhostname = mail.example.com
mynetworks = 127.0.0.0/8, 192.168.1.0/24
myorigin = $mydomain
newaliases_path = /usr/bin/newaliases.postfix


Regards,
Ben

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