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  • Sending mail through isp server

    Exchange experts,

    How do I configure exchange 2003 to send mail through my isp server using SSL? ATT Yahoo is changing the server name and it requires SSL.

    Here is the new ATT Yahoo DSL settings:

    pop.att.yahoo.com

    smtp.att.yahoo.com

    Outgoing mail server: Outgoing server (SMTP) requires authentication

    Outgoing mail port #: 465, secure connection (SSL) checked

    Thanks in advance.

  • #2
    Re: Sending mail through isp server

    That would be considered relaying and I would be surprised if Yahoo allowed that.

    Yahoo actively blocks email from open relays, known spam source addresses, and broadband IP addresses, a practice that AOL started a few years ago which has caught on through most reputable ISPs and educational institutions. See http://help.yahoo.com/l/us/yahoo/mai...basics-56.html

    When they provide the information you have shown us here, that is usually the information you are given to configure a mail client such as Outlook, Outlook Express, Eudora (are they still around?), Pegasus, Netscape, etc. It is usually not provided for purposes relating to relaying.

    I pay monthly for a mail relaying service through TZO.COM. If you want to own your own Exchange server, you're going to need a known good source on the internet to relay your mail through because there are just too many entities out on the internet now that are blocking basement Exchange servers on broadband internet for your mail server to be even remotely effective.
    Last edited by jasonboche; 17th April 2007, 02:49.
    VCDX3 #34, VCDX4, VCDX5, VCAP4-DCA #14, VCAP4-DCD #35, VCAP5-DCD, VCPx4, vEXPERTx4, MCSEx3, MCSAx2, MCP, CCAx2, A+
    boche.net - VMware Virtualization Evangelist
    My advice has no warranties. Follow at your own risk.

    Comment


    • #3
      Re: Sending mail through isp server

      You need to do two things.

      1. Add the additional port to SMTP virtual server in ESM.
      Servers, <your server>, Protocols, SMTP. Right click on the SMTP vs and choose Properties. On the first screen choose Advanced and then add. Enter the port number (465) and select the IP address of your server. DO NOT REMOVE 25.
      Apply/OK out.

      2. Create an SMTP Connector or adjust your existing SMTP connector to route email via TLS. TLS is set on the Advanced, Outbound Security options. TLS is another name for SMTP over SSL. On the same tab, enable basic authentication and enter the information you need to use with the Yahoo account.
      Apply/OK out.
      If you need assistance with the SMTP Connector creation, see my web site here: http://www.amset.info/exchange/smtp-connector.asp

      No idea what Jason is on about regarding relaying... what you are asking is standard stuff for an Exchange server where outbound email has to go out through an ISPs SMTP Server.

      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


      • #4
        Re: Sending mail through isp server

        Hi Simon,

        Mail relaying can occur when users outside the organization use a mail system to send messages bound for another organization.

        Hope that helps.
        VCDX3 #34, VCDX4, VCDX5, VCAP4-DCA #14, VCAP4-DCD #35, VCAP5-DCD, VCPx4, vEXPERTx4, MCSEx3, MCSAx2, MCP, CCAx2, A+
        boche.net - VMware Virtualization Evangelist
        My advice has no warranties. Follow at your own risk.

        Comment


        • #5
          Re: Sending mail through isp server

          Originally posted by Sembee View Post
          You need to do two things.

          1. Add the additional port to SMTP virtual server in ESM.
          Servers, <your server>, Protocols, SMTP. Right click on the SMTP vs and choose Properties. On the first screen choose Advanced and then add. Enter the port number (465) and select the IP address of your server. DO NOT REMOVE 25.
          Apply/OK out.

          2. Create an SMTP Connector or adjust your existing SMTP connector to route email via TLS. TLS is set on the Advanced, Outbound Security options. TLS is another name for SMTP over SSL. On the same tab, enable basic authentication and enter the information you need to use with the Yahoo account.
          Apply/OK out.
          If you need assistance with the SMTP Connector creation, see my web site here: http://www.amset.info/exchange/smtp-connector.asp

          No idea what Jason is on about regarding relaying... what you are asking is standard stuff for an Exchange server where outbound email has to go out through an ISPs SMTP Server.

          Simon.
          This is exactly what I'm looking for.

          I check the que and my test email is stuck there with "remote smtp does not support TLS"

          Is there any other way around this?

          Comment


          • #6
            Re: Sending mail through isp server

            Jason, I think I know what relaying is... I am an Exchange MVP.

            fosho504 - who told you that the remote server supports TLS? Have you actually had that confirmed by the ISP?

            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


            • #7
              Re: Sending mail through isp server

              Sembee

              I took a screen shot, see attachment.
              Attached Files

              Comment


              • #8
                Re: Sending mail through isp server

                Originally posted by Sembee View Post
                fosho504 - who told you that the remote server supports TLS? Have you actually had that confirmed by the ISP?
                fosho504: Sembee is asking if your ISP supports TLS or not. It seems as if you have something somewhere set with TLS on. Based upon that error, I'd guess that they do not support TLS, and that it needs to be turned off, HOWEVER, like Sembee asked, it's best to check with your ISP first on what protocols they support and don't support before making any changes. Check twice, change once, and all that
                ** Remember to give credit where credit is due and leave reputation points where appropriate **

                Comment


                • #9
                  Re: Sending mail through isp server

                  Originally posted by Wired View Post
                  fosho504: Sembee is asking if your ISP supports TLS or not. It seems as if you have something somewhere set with TLS on. Based upon that error, I'd guess that they do not support TLS, and that it needs to be turned off, HOWEVER, like Sembee asked, it's best to check with your ISP first on what protocols they support and don't support before making any changes. Check twice, change once, and all that
                  What I'm trying to setup is sending mail through my ISP. My ISP requires SSL port 465. From Sembee first post he said "TLS is another name for SMTP over SSL.".

                  Please help.

                  Comment


                  • #10
                    Re: Sending mail through isp server

                    Hopefully Sembee can help you out with this standard Exchange stuff when he returns. He is an Exchange MVP. I will be interested to learn what the solution is for future reference.

                    Cheers,
                    Jas
                    VCDX3 #34, VCDX4, VCDX5, VCAP4-DCA #14, VCAP4-DCD #35, VCAP5-DCD, VCPx4, vEXPERTx4, MCSEx3, MCSAx2, MCP, CCAx2, A+
                    boche.net - VMware Virtualization Evangelist
                    My advice has no warranties. Follow at your own risk.

                    Comment


                    • #11
                      Re: Sending mail through isp server

                      It would appear that the ISP is using the alternative port for SSL. I thought most people had dropped that and were using the standard port just with the SSL protection. Oh well.

                      What I would do then is this.

                      1. Change the Default SMTP virtual server port configuration to remove port 25. That leaves just port 465 listed.

                      2. Create a new SMTP virtual server, set the IP address the same as your server's IP address using port 25.

                      This means you have two SMTP virtual servers - the default listening on port 465 and a second one on port 25.

                      Ensure that the SMTP connector is set to use the Default SMTP virtual server only.

                      Email should then flow out correctly to the ISP.

                      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


                      • #12
                        Re: Sending mail through isp server

                        Seems like ATT (sbcglobal.net) dosen't like TLS. I confirmed it by setting up outlook to send through smtp.att.yahoo.com port 465 using TLS and it errors out. If I keep the same settings but use SSL mail goes through.

                        It looks like ATT can tell if its a TSL connection or a SSL connection.

                        Is there any way in exchange 2003 to use SSL instead of TLS?

                        Comment


                        • #13
                          Re: Sending mail through isp server

                          As far as I am concerned, TLS and SSL are the same thing.
                          I actually believe that TLS is more recent than SSL, but both date from the late 90s, early 2000 so there should be no reason why they don't support it.

                          I am finding nothing about the change to require SSL. Has that been announced anywhere in public?

                          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


                          • #14
                            Re: Sending mail through isp server

                            I didn't officially receive the email from ATT notifying me of the change, but a friend of mines did and I found some people on DSLreport.com received it too.

                            http://www.dslreports.com/forum/remark,17759508

                            I guess I'm fine for now until March 30.

                            Comment


                            • #15
                              Re: Sending mail through isp server

                              Any more suggestions anybody?

                              Comment

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