On 2/14/2007 9:55 PM, Richard W. Ernst wrote:
Our work email is being blocked from forwarding by my domain registrar,
godaddy. they say 12.105.234.130 is problematic, so they're blocking
the whole dang class C subnet. We, of course, own/utilize the subnet
from 12.105.234.192-255, not 130 and don't use 130 for anything.
How can I show them that they're idiots and should stop blocking OUR
subnet?
Assuming you're talking about sending out email, the "blocking" is
probably done because the whole class C is listed as residential or
dynamic by someone who thinks they know (shoot first, ask questions
later). However, I don't see 12.105.234.130 listed in RBL check at
http://www.robtex.com/rbls/12.105.234.130.html
Do you have the reverse DNS for the IP of your mail server pointing to
something with your domain name in it, not someone elses? This is a good
step.
In my experience AT&T likes delegation of classless subnets per RFC-2317
so then you do the reverse DNS. If you run your own DNS this isn't a
problem, otherwise you may have to teach your ISP how to do it.
Karl
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