Reverse DNS for Exchange help

Discussion in 'Windows Small Business Server' started by Anonymous User, Dec 10, 2004.

  1. Hello,
    Reverse DNS help needed.

    My domain is using for its nameservers & domain management.
    We use "" as our MX record

    Occasionally we get failure NDRs regarding reverse DNS from outside
    Mail to Hotmail and AOL is usually delayed a full 8 hour day.

    We use Verizon for our DSL business class connection; static IP.
    We are blacklist free, and test negative for open relay.

    Our only Reverse DNS pointer that shows up from '' is our
    actual Verizon DSL Host name. Our "" is not listed as a
    reverse entry...

    I am confused as to who I should contact to add a Reverse DNS PTR record
    for: ""

    Do I contact Verizon or for a Reverse PTR record?
    I did not see any Reverse pointer entry screens at the

    Many thanks on this...!!!
    Anonymous User, Dec 10, 2004
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  2. It would be Verizon, since they own the netblock/public IP.
    If you can't get them to change the PTR, set up an SMTP connector for,, etc that uses your ISP's SMTP server as a smarthost.
    It doesn't *usually* matter if the hostname in the PTR matches the server's
    name, but sometimes it does, and this may be a workaround.
    Lanwench [MVP - Exchange], Dec 10, 2004
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  3. Thanks for the reply!

    I will contact Verizon tomorrow.
    And, I will demand satisfaction... glove slap (random The Simpsons

    SPF is next on the list.. yikes...

    "Lanwench [MVP - Exchange]"
    Anonymous User, Dec 10, 2004
  4. Yeah, right. Good luck there.

    Lanwench [MVP - Exchange], Dec 10, 2004
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