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connectivity with Exchange 2003

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  • connectivity with Exchange 2003

    Our existing network is running on Exchange 2k7 (Domain

    We have another forest running on Exchange 2k3 (Domain IP

    How can we configure both Exchange server so that users in each forest can send/receive mails to each other...

    I have created Accepted domain in Exch.2k7 for domain (type-Internal Relay)
    and one send connector with smart host configured with the address of Domain B(

    On exch.2k3 I have configured smart host address as on default SMTP virtual Server Properties...


    Users in can send mails to


    Users in are unable to send mails to

    and getting NDR as:

    Your message did not reach some or all of the intended recipients.

    Subject: Test mail
    Sent: 7/21/2009 1:07 AM

    The following recipient(s) could not be reached:

    [email protected] on 7/21/2009 1:07 AM
    The e-mail account does not exist at the organization this message was sent to. Check the e-mail address, or contact the recipient directly to find out the correct address.
    < #5.1.1>

  • #2
    Re: connectivity with Exchange 2003

    Check the permissions on the Exchange 2k7 Receive connector. You may need to allow it to relay emails from the other IP. I allow anonymous on ours as it receives emails from the internet though it is best practice to have an Edge Transport Server for that job.


    • #3
      Re: connectivity with Exchange 2003

      Shall I use default Receive connector or create a new one ??

      I have created a new SMTP receive connector and enter the address of remote domain ( and Anonymous Users as permissions for this connector...

      But still users in are unable to send emails....

      Is smart host configuration is sufficient in exch2k3 for sending emails..or some other configurations are required for that.. ???

      I have modified Recipient Policy in Exchange 2003 and enter the address as ...

      Is it required ?
      Last edited by sachin1361; 21st July 2009, 10:25.


      • #4
        Re: connectivity with Exchange 2003

        My Exchange 2k3 skills are pretty poor. Hopefully, someone else can advise. It sounds as if you have done it correctly though. Have you got a few send connectors on the 2k3 Exchange box? Have you checked the assigned costs?