[Tfug] My mail domain is being blocked!

[Christopher Robbins]

On Thu, Feb 3, 2011 at 1:14 PM, Cory Hollingsworth <cory at pumpatorium.net>wrote:

> I have just discovered something sad.  I have been running my own mail
> server since 2002 (Linux/Postfix) and both GMail and the PLUG mail list
> are blocking my mail server.  In both cases my mail server cannot connect
> to port 25 for either domains.  However both will happily send mail to my
> mail server.  What hypocrisy! 8-)
>
> This worked some time in the last 6 months, just now I have noticed that
> my email has stopped going through.
>
> My mail server IP is not on any SPAM list as far as I can find.  I used
> http://www.mxtoolbox.com/SuperTool.aspx to check.  If someone knows of a
> better tool please let me know.
>
> Also I have verified that my A, MX, and PTR (reverse lookup) DNS records
> are all correct.  They all seem fine.
>
> My mail logs show pretty clearly that my server has never been SPAMing and
> all of my open relay tests fail.  I am pretty sure I have the mail server
> properly secured.
>
> My mail server has a static IP address, but I am suspecting that GMail and
> PLUG may mistakenly believe it to be a dynamic address.  I believe some
> places block dynamic addresses.  I wonder how one goes about fixing a
> problem of someone misidentifying your IP address as dynamic when it is
> static?  Or how does one go about fixing an arbitrary block by a mail
> domain?
>
> Any advice on this topic would be welcome.
>
> Thanks.
>
>
Who's your bandwidth provider?

Just curious - I've had some weird issues with mail out of GoDaddy getting
blacklisted...In our case, they we're hosting our mailserver.  A little
different here, but
possibly related?

-- 
Christopher P Robbins
4909 West Joshua Blvd, #1047
Chandler, Arizona 85226
Phone: (928) 257-6368
Email: robbinsc at gmail.com
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