[CentOS] Not receiving mail

Tue Oct 19 19:58:14 UTC 2010
Ben McGinnes <ben at adversary.org>

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 =,
myorigin = $mydomain
newaliases_path = /usr/bin/newaliases.postfix


-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 258 bytes
Desc: OpenPGP digital signature
URL: <http://lists.centos.org/pipermail/centos/attachments/20101020/ae3c846b/attachment-0004.sig>