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  • Relaying mail to AOL and Netscape

    Hi All,

    Im having delay and rejection NDR from the above domains when sending from my exchange 2003 box. I suspect my ip address is not registered with the correct authority. Whats the best way to deal with this, register my ip or use my a smarthost on my isp network (which is BT), if so how would I do this?

  • #2
    Re: Relaying mail to AOL and Netscape

    1. Verify that you have a PTR record at your ISP.
    2. Check your domain and MX using the next site: http://www.dnsstuff.com
    CNE 5, CCA, MCSE NT4.0-2003, MCSE 2003 messaging, Exchange Server MVP.
    Tzahi Kolber - IT Supervisor
    Polycom Israel.

    Comment


    • #3
      Re: Relaying mail to AOL and Netscape

      How would I do a PTR Record, also did a check on dnsstuff and nothing really jumped out.

      Comment


      • #4
        Re: Relaying mail to AOL and Netscape

        you can check it in the Dnsstuff website at the next location:
        "Reverse DNS lookup
        Enter IP/IPv6 (or host name)"
        CNE 5, CCA, MCSE NT4.0-2003, MCSE 2003 messaging, Exchange Server MVP.
        Tzahi Kolber - IT Supervisor
        Polycom Israel.

        Comment


        • #5
          Re: Relaying mail to AOL and Netscape

          The simple test is to put your domain in to dnsreport.com - same site but gives all the information in the a single page.

          AOL (and Netscape as it runs on the same infrastructure) are very picky about who they accept email from. If your DNS is not configured correctly they will reject your messages.

          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


          • #6
            Re: Relaying mail to AOL and Netscape

            Ok guys, not really get anywhere due to my lack of knowledge on such issues.

            Ive used dnsreports.com and the page which is displayed after ive typed in the name has 3 WARNS on it.

            Glue at parent nameservers
            WARNING. The parent servers (I checked with nsc.nic.uk.) are not providing glue for all your nameservers. This means that they are supplying the NS records (host.example.com), but not supplying the A records (192.0.2.53), which can cause slightly slower connections, and may cause incompatibilities with some non-RFC-compliant programs. This is perfectly acceptable behavior per the RFCs. This will usually occur if your DNS servers are not in the same TLD as your domain (for example, a DNS server of "ns1.example.org" for the domain "example.com"). In this case, you can speed up the connections slightly by having NS records that are in the same TLD as your domain.

            Nameservers on separate class C's
            WARNING: We cannot test to see if your nameservers are all on the same Class C (technically, /24) range, because the root servers are not sending glue. We plan to add such a test later, but today you will have to manually check to make sure that they are on separate Class C ranges. Your nameservers should be at geographically dispersed locations. You should not have all of your nameservers at the same location. RFC2182 3.1 goes into more detail about secondary nameserver location.

            Single Point of Failure
            WARNING: Although you have at least 2 NS records, they may both point to the same server (one of our two tests shows them being the same, the other does not), which would result in a single point of failure. You are required to have at least 2 nameservers per RFC 1035 section 2.2.

            SPF record
            Your domain does not have an SPF record. This means that spammers can easily send out E-mail that looks like it came from your domain, which can make your domain look bad (if the recipient thinks you really sent it), and can cost you money (when people complain to you, rather than the spammer). You may want to add an SPF record ASAP, as 01 Oct 2004 was the target date for domains to have SPF records in place (Hotmail, for example, started checking SPF records on 01 Oct 2004).

            There are no fails on this screen.

            Does this make any sense to anyone.

            Comment


            • #7
              Re: Relaying mail to AOL and Netscape

              None of those errors would cause a problem with email delivery. Although if you are playing someone to host your DNS I would ask them what they are playing at with single point of failures and putting everything on the same subnet.

              Have you checked that you are not listed on any blacklists?

              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: Relaying mail to AOL and Netscape

                I think I need to configure the BT SMTP server as a smarthost within Exchange 2003, has anyone done that before?

                Comment


                • #9
                  Re: Relaying mail to AOL and Netscape

                  The first thing you need to do is call BT. Tell them that you want to use their smart host. They will then add your domain to the list of domains that can use their smart host. Until you do that and they have confirmed that it is done you will be unable to use the smart host.

                  Once done, you will need to configure an SMTP connector.
                  http://www.amset.info/exchange/smtp-connector.asp

                  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


                  • #10
                    Re: Relaying mail to AOL and Netscape

                    Seebee,

                    That link worked a treat, I was able to setup a SMTP connector just to deal with mail destined for the two problem domains. The only downside (and its a small one) is that BT servers take 10 minutes to deliver the messages. But hey, thats better than never delivering the message!!

                    Thanks to all for your efforts.

                    DW

                    Comment


                    • #11
                      Re: Relaying mail to AOL and Netscape

                      I spoke to soon. Ive just setup a test aol account and tried to send email from my domain to the aol domain but its not getting there. Other people within the organisation have also tried earlier and they have the following admin message

                      From: Administrator
                      Sent: 13 September 2007 06:23
                      To: my user
                      Subject: Delivery Status Notification (Delay)

                      This is an automatically generated Delivery Status Notification.

                      THIS IS A WARNING MESSAGE ONLY.

                      YOU DO NOT NEED TO RESEND YOUR MESSAGE.

                      Delivery to the following recipients has been delayed.

                      customer on the aol [email protected]

                      Any ideas guys?

                      Comment


                      • #12
                        Re: Relaying mail to AOL and Netscape

                        That is just a delay message. Means nothing. There could be any number of reasons why the messages could be delayed. A routing issue, a connection issue etc.

                        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


                        • #13
                          Re: Relaying mail to AOL and Netscape

                          Thanks for the advice Sembee, how long would a message take to get through from my domain to aol? Ive sent several test messages throughout the day and as yet, Ive not received anything into the aol account. I guess AOL are doing further checking on our domain???

                          Comment


                          • #14
                            Re: Relaying mail to AOL and Netscape

                            I usually find with AOL that one of three things happen.

                            1. The reject your message immediately.
                            2. The message is accepted and then dropped silently inside
                            3. The message arrives in the mailbox.

                            I have never known delays to messages to AOL being caused by their spam filtering, most likely to be routing or connection issues.
                            It also isn't so much your domain, as even AOL realise that a lot of spam is spoofed, the issues are usually with your IP address or how the server is announcing itself.

                            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


                            • #15
                              Re: Relaying mail to AOL and Netscape

                              Ok,

                              Ive sent a test message to our AOL Test account from another domain and the email gets through within 1 minute. When I send the mail from my domain, after 12hrs or so, I can the standard email delay message. So it appears AOL are doing something with their gateways which is preventing my domain from sending emails to theirs.

                              Is there anyway round this Sembee?

                              Comment

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