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  • exchange 2007 unable to connect to ISP relay server.

    Hi there forum members

    ok, I have just recently join a company. They have engaged an IT (ISP) firm to setup their office router and their exchange server.

    however, most of the office email accounts are still hosted at the ISP end. I created a test account within the new exchange to test sending and receiving mail . I tried sending the mail from within but it got undelievered. I sent a mail from an external account (gmail) but it did not reach the test account on the exchange in my office.

    I checked the configuration for exchange, it shows that the exchange has a send connector setup to get mail from the ISPs relay server.

    I further went on to try and ping and tracert to the relay serve but all I got is destination address unreachable.

    I have no access to the router (gateway) since the its only rented out from the ISP and the ISP is not willing to give me access to verify this if my exchange can talk to their relay server.

    Please advise what might be other possible cause of my exchange not getting connected or talking to the relay .
    I strongly feels that the gateway is not allowing the appropriate traffice from the exchange to get through to the relay.

    Is there other possible faults or tests I should do or check for to be sure if the exchange is setup properly?

    please advise

    thanks

    albert

  • #2
    Re: exchange 2007 unable to connect to ISP relay server.

    Send Connectors are just that - SEND. They have nothing to do with receive.
    If the MX records on the domain are pointing to the ISP then the email will never reach Exchange.

    If the ISP controls the router then ask them to verify that port 25 is open. They are providing you with a service, they cannot have it both ways. If they want to control router access then they have to set it in the way that you want.

    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: exchange 2007 unable to connect to ISP relay server.

      Simon thank for your response,

      within my exchange I noticed the send connector is setup as pointing to a Smart Host and not as to a MX record.

      the smart host is labelled sing the FQDN and not its IP address.

      Is that still ok?

      Albert

      Comment


      • #4
        Re: exchange 2007 unable to connect to ISP relay server.

        Originally posted by diditak View Post
        Simon thank for your response,

        within my exchange I noticed the send connector is setup as pointing to a Smart Host and not as to a MX record.

        the smart host is labelled sing the FQDN and not its IP address.

        Is that still ok?

        Albert
        That doesn't make sense.
        MX records are for incoming email, not outbound. The smart would be either another server under your control, a server at an ISP or a server at a service provider who is relaying the email for you (Antispam provider for example).

        Smart hosts can be either an IP address or a FQDN.

        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

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