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  • BLACK LIST reverse DNS

    if I enter my IP address and check to see if it's on some black list, I keep getting this message:

    Since your domain name does not appear as the last components in any of those reverse dns names, that needs to be fixed.

    I have no idea how to correct that error.

    mx record is: mail.metrohmusa.com
    IP: 72.91.64.98

    and I also get this while trying to get off fiveten:

    IP address 72.91.64.98 is listed here as 72.88.219.32.verizon.net misc.spam.

    Now my Exchange server is getting more & more NDR's.

    Exchange server: 2007 Standard Ed, on OS win2k3 stand x64
    DC servers: OS win2k3 with the latest SP, x64.


  • #2
    Re: BLACK LIST reverse DNS

    You do not have a valid reverse DNS entry (aka PTR) on your IP address.

    C:\>nslookup 72.91.64.98
    Server: server.domain.co.uk
    Address: 192.168.3.1

    Name: static-72-91-64-98.tampfl.fios.verizon.net
    Address: 72.91.64.98


    C:\>


    You need to speak to your ISP and ask them to set the reverse DNS address / PTR Record as
    mail.metrohmusa.com

    If they will not then you will need to change your Send Connector to route email through their SMTP Server service.

    Simon.
    --
    Simon Butler
    Exchange MVP

    Blog: http://blog.sembee.co.uk/
    More Exchange Content: http://exchange.sembee.info/
    Exchange Resources List: http://exbpa.com/
    In the UK? Hire me: http://www.sembee.co.uk/

    Sembee is a registered trademark, used here with permission.

    Comment


    • #3
      Re: BLACK LIST reverse DNS

      You are listed on a considerable number of lists.

      Type your IP address in to here.

      http://www.mxtoolbox.com/blacklists.aspx

      Click the link on the left handside. There should be instructions regarding how to be removed from the list.

      Also, you need to check why you have been viewed as a spammer. Check whether you are an open relay and see if a user has been sending bulk emails etc.

      Comment


      • #4
        Re: BLACK LIST reverse DNS

        having a really tough time getting Verizon to make that DNS/PTR record change...

        Comment


        • #5
          Re: BLACK LIST reverse DNS

          I had similar issues before with much smaller (local only) ISPs than Verizon. Generally, you will have to ask for a 2nd level IT support person who actually knows (or has a bit more knowledge) of what you are trying to do.

          Unless of course you've spoken to someone who knows what it is and yet they will not add it for some reason. In any case, your best bet is to get a supervisor or higher level support person.
          ~Kara
          'What we do not make conscious emerges later as fate.' Carl Jung

          Comment


          • #6
            Re: BLACK LIST reverse DNS

            Originally posted by karatecki View Post
            I had similar issues before with much smaller (local only) ISPs than Verizon. Generally, you will have to ask for a 2nd level IT support person who actually knows (or has a bit more knowledge) of what you are trying to do.

            Unless of course you've spoken to someone who knows what it is and yet they will not add it for some reason. In any case, your best bet is to get a supervisor or higher level support person.

            Yes that is what I requested, so we will see...this guy is suppose to check into it for me. Spoke to about 15 people before I could speak to a real supervisor.

            Comment


            • #7
              Re: BLACK LIST reverse DNS

              Remember that first line support only have one job - to get rid of you. They are always looking for something you say so that they can go "not supported" and close the call.

              Mention "Reverse DNS" and they only hear "DNS", lookup your domain, find they don't manage it and try and tell you to go away.

              Two things I say in that scenario -
              a. do not say reverse DNS, but PTR record.
              b. if someone says that to you, ask to speak to someone who understands how the internet works.

              Unfortunately it can be an uphill battle until you find someone that either knows what you are on about, or puts the right thing in to their script.

              Simon.
              --
              Simon Butler
              Exchange MVP

              Blog: http://blog.sembee.co.uk/
              More Exchange Content: http://exchange.sembee.info/
              Exchange Resources List: http://exbpa.com/
              In the UK? Hire me: http://www.sembee.co.uk/

              Sembee is a registered trademark, used here with permission.

              Comment


              • #8
                Re: BLACK LIST reverse DNS

                Finally the drama is over. Verizon has created my PTR record today, so thanks for everyone's input!!

                Comment


                • #9
                  Re: BLACK LIST reverse DNS

                  Good news. Thanks for the feedback.

                  Comment

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