[wplug] reverse DNS

Duncan Hutty duncanhutty at comcast.net
Wed Apr 7 11:48:07 EDT 2004


Thank you all for your reponses.

<Bill Moran>
>1) Does the hostname resolve?
Yes
>2) Does the IP of the server have a PTR record
Yes, some foo-bar.client.comcast.net
>3) Does the hostname that comes back from a PTR lookup resolve forward?
Yes, the above foo-bar.client.comcast.net resolves to the correct IP address.

And yet, even hotmail.com mail servers tag any mail sent as spam! Oh the irony! Does this imply that there is something else that I have incorrect and it is not being tagged as spam/refused due to incorrect DNS?

I appreciate the comments about Comcast's Evilness, and I need about one more important/inconvenient outage/screwup to persuade my boss that a T1 is worth it.

I could give a long list of reasons why Comcast is awful, but let's just leave it at this: they have changed my company's STATIC IP address block 3 times in the last 8 months. Does wonders for your VPNs that does, I can tell you.

-- 
Duncan Hutty



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