No PTR record in reverse lookup zone

[Guest]

Any one else have this problem.
I a single server that runs an external dns that resolves
my www. domain. On the same box I have an exchange server
running. When I regeisterd with internic I pointed both
primary and secondary parenet servers to the same machine.
So far everything seems to be working except that when I
do a dsn test from dnsreport.com It always returns
with "One or more of your mail server(s) have no reverse
DNS (PTR) entries (if you see "Timeout" below, it may mean
that your DNS servers did not respond fast enough.
I have created a dns zone in AD, It resolves address
for my exchnage server and website.
The zone is created and a reverse lookup zone is also
created. A PTR record exists for the reverse lookup zone,
but I still get the message.
At times I get non delivery reports stating that dns
lookup fail.
Any ideas of why it states that I do not have a ptr
record, when I have created it in the reverse look up zone.

 

[Kevin D. Goodknecht [MVP]]

In

Any one else have this problem.
I a single server that runs an external dns that resolves
my www. domain. On the same box I have an exchange server
running. When I regeisterd with internic I pointed both
primary and secondary parenet servers to the same machine.
So far everything seems to be working except that when I
do a dsn test from dnsreport.com It always returns
with "One or more of your mail server(s) have no reverse
DNS (PTR) entries (if you see "Timeout" below, it may mean
that your DNS servers did not respond fast enough.
I have created a dns zone in AD, It resolves address
for my exchnage server and website.
The zone is created and a reverse lookup zone is also
created. A PTR record exists for the reverse lookup zone,
but I still get the message.
At times I get non delivery reports stating that dns
lookup fail.
Any ideas of why it states that I do not have a ptr
record, when I have created it in the reverse look up zone.

Has your ISP delegated the reverse lookup to you?
This is not the same as your domain and must be delegated by your ISP
because they own the IP.

While on the www.dnsreport.com website, click on the link to
www.dnsstuff.com and run a reverse lookup to see who has the delegation for
your IP address. You will have to read down through the return but it will
tell you the authoritative DNS for the reverse lookup.

 

[Michael Johnston [MSFT]]

Your ISP owns the reverse lookup zone for your IP address. It is their responsibility to either delegate this out to you or add the
PTR record on your behalf.

Thank you,
Mike Johnston
Microsoft Network Support
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[Guest]

I will definitly follow that route,
thank you very much for the help.