[CentOS] Strange Postfix problem

[Rob Kampen]

On 04/10/2013 03:58 AM, tdukes at palmettoshopper.com wrote:
> Hello,
>
> Was trying to setup postfix on my home PC. Running Centos 6.4. I don't
> have a static IP and use zoneedit and ddclient to keep my installation
> of zoneminder current.
>
> So I decided I wanted to get zoneminder to send me email alerts. Sent
> some test messages but none were sent.
>
> I went to webdnstools website thinking maybe there is a dns or network
> problem.
>
> When it checks my dns setup, everything is fine except the mail server
> is has the wrong IP address. The A record and the www A record have the
> correct IP. The IP address its reporting is one that belongs to my ISP.
sounds like your ISP only allows certain services through and intercepts 
the rest as you do not have a fixed IP.
may want to talk to them as they control the DNS and reverse DNS, both 
of which should be correct for email servers to function correctly. 
Basically, to do an email server you need a fixed IP.
>
> TIA
>
>
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