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  1. #1

    DNS Reverse lookup value?

    How important is DNS reverse lookup for web sites and mail servers? Is there any real reason to do it?

  2. #2
    Join Date
    Apr 2004
    Its VERY important. Most ISPs wont bother to deliver your email if its doesnt have a PTR record (AOL, etc.)

  3. #3
    That would be true if the traffic was originating from the host/dns entry. But if the host just serving it shouldn't be necessary. Well atleast I can't find a reason. Outside of this confusion I have, let me explain my dilemna.

    I have control of my domains dns records through my web host. I want to add entries within dns that points back to servers on my local dmz. I know there is no issues with the forward lookup because it will ultimately query my dns to resolve. My problem is where do I set the reverse entry? My web host or my ISP?

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