>In the reverse lookup found at www.dnsstuff.com, it shows that I don't
>have a PTR record for www.varsitycontractors.com, as well as
>hostmail.varsitycontractors.com.
Just a clarification here: host names and domain names don't have reverse
DNS entries, only IPs do. If www.varsitycontractors.com has an A record of
63.230.118.54, then 63.230.118.54 would need the reverse DNS entry.
>Well, in discussing this with the ISP, they first said that there is a
>PTR entry for www.varsitycontractors.com.
They are both right and wrong. Although they may have the PTR entry, it
isn't in the DNS servers responsible for the 63.230.118.54 reverse DNS.
>I copied some previous threads to them, but there wasn't any instruction
>on how. He didn't understand that you could have distinct PTR records
>on an MX (as per the dnsstuff.com DNS Report)... He was looking in
>Win2kserver, DNS area, and couldn't see how to put a PTR for MX... Also
>looked in Cobol server DNS app...
You can't have a PTR record for an MX record. The DNS report makes sure
that the mail servers have PTR records, by checking to see what the IP
address of the mailservers are (using the MX records), and checking to see
if those IPs have reverse DNS entries.
Just ask them if they can "set up the reverse DNS for 63.230.118.54 so that
it returns www.varsitycontractors.com" (and then repeat it for any other
addresses as needed, if they can do it). If they can't do that, tell them
you are switching to a real ISP. If they can't set up a reverse DNS entry
for you, they shouldn't be providing bandwidth for you. Reverse DNS
entries are technically required by the RFCs for all Internet hosts, so it
sounds like they are really clueless.
>One more thing, Scott, it seems that I see different info on the reports
>when I go in... How often do you update the code?
It is usually only updated every couple of weeks or so, and typically only
for minor changes.
-Scott
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