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exchange 2003 - can receive outside emails, but can't send them

    Question

  • Hello All!

    I have an exchange server 2003, I was using it at the beginning for internal emails and now we change it so we can contact outside world. My ISP have setup smtp feed and I can send email from gmail account and it will go through to exchange. But when I try to send some email to gmail, hotmail or anywhere outside it just sits in a queue.
    So I tried smtpdiag.exe and thats what Im getting:
    F:\SmtpDiag>smtpdiag ccc@staff.claverham.e-sussex.sch.uk myemail@gmail.com /v

    Searching for Exchange external DNS settings.
    Computer name is INTERMAIL.
    VSI 1 has the following external DNS servers:
    There are no external DNS servers configured.

    Checking SOA for gmail.com.
    Checking external DNS servers.
    Checking internal DNS servers.

    Checking TCP/UDP SOA serial number using DNS server [10.22.20.100].
    TCP test succeeded.
    UDP test succeeded.
    Serial number: 2008102400
    SOA serial number match: Passed.

    Checking local domain records.
    Starting TCP and UDP DNS queries for the local domain. This test will try to
    validate that DNS is set up correctly for inbound mail. This test can fail for
    3 reasons.
        1) Local domain is not set up in DNS. Inbound mail cannot be routed to
    local mailboxes.
        2) Firewall blocks TCP/UDP DNS queries. This will not affect inbound mail,
    but will affect outbound mail.
        3) Internal DNS is unaware of external DNS settings. This is a valid
    configuration for certain topologies.
    Checking MX records using TCP: staff.claverham.e-sussex.sch.uk.
      MX:    mx.ifl.net (20)
      MX:    mx.segfl.ifl.net (10)
      A:     mx.ifl.net [213.18.248.112]
      A:     mx.segfl.ifl.net [62.171.198.109]
      A:     mx.segfl.ifl.net [62.171.198.108]
    Checking MX records using UDP: staff.claverham.e-sussex.sch.uk.
      MX:    mx.segfl.ifl.net (10)
      MX:    mx.ifl.net (20)
      A:     mx.segfl.ifl.net [62.171.198.108]
      A:     mx.segfl.ifl.net [62.171.198.109]
      A:     mx.ifl.net [213.18.248.112]
    Both TCP and UDP queries succeeded. Local DNS test passed.

    Checking remote domain records.
    Starting TCP and UDP DNS queries for the remote domain. This test will try to
    validate that DNS is set up correctly for outbound mail. This test can fail for
    3 reasons.
        1) Firewall blocks TCP/UDP queries which will block outbound mail. Windows
    2000/NT Server requires TCP DNS queries. Windows Server 2003 will use UDP
    queries first, then fall back to TCP queries.
        2) Internal DNS does not know how to query external domains. You must
    either use an external DNS server or configure DNS server to query external
    domains.
        3) Remote domain does not exist. Failure is expected.
    Checking MX records using TCP: gmail.com.
      MX:    gsmtp183.google.com (50)
      MX:    gmail-smtp-in.l.google.com (5)
      MX:    alt1.gmail-smtp-in.l.google.com (10)
      MX:    alt2.gmail-smtp-in.l.google.com (10)
      MX:    gsmtp147.google.com (50)
      A:     gsmtp183.google.com [64.233.183.27]
      A:     gmail-smtp-in.l.google.com [74.125.79.27]
      A:     gmail-smtp-in.l.google.com [74.125.79.114]
      A:     alt1.gmail-smtp-in.l.google.com [74.125.47.114]
      A:     alt1.gmail-smtp-in.l.google.com [74.125.47.27]
      A:     alt2.gmail-smtp-in.l.google.com [64.233.179.27]
      A:     gsmtp147.google.com [209.85.147.27]
    Checking MX records using UDP: gmail.com.
      MX:    gmail-smtp-in.l.google.com (5)
      MX:    alt1.gmail-smtp-in.l.google.com (10)
      MX:    alt2.gmail-smtp-in.l.google.com (10)
      MX:    gsmtp147.google.com (50)
      MX:    gsmtp183.google.com (50)
    Both TCP and UDP queries succeeded. Remote DNS test passed.

    Checking MX servers listed for myemail@gmail.com.
    Connecting to gmail-smtp-in.l.google.com [74.125.79.114] on port 25.
    Connecting to the server failed. Error: 10060
    Failed to submit mail to gmail-smtp-in.l.google.com.
    Connecting to gmail-smtp-in.l.google.com [74.125.79.27] on port 25.
    Connecting to the server failed. Error: 10060
    Failed to submit mail to gmail-smtp-in.l.google.com.
    Connecting to alt1.gmail-smtp-in.l.google.com [74.125.47.27] on port 25.

    Can anyone advice why I get this error?

    Thanks in advance
    Thursday, November 06, 2008 1:58 PM

Answers

  • Hello,
    Thanks you both for replies.
    As we are behind proxy and firewall from supplier, some traffic was blocked. It is now all resolved and working fine.

    Thanks again for suggestions

    Regards
    Monday, November 10, 2008 8:19 AM

All replies

  • Hello,

    Make sure your firewall allows Port 25 for exchange server to connect outside mail servers.

    also have a look into this article to test SMTP communication.

    XFOR: Telnet to Port 25 to Test SMTP Communication
    http://support.microsoft.com/?kbid=153119


    hope this helps

    Thanks




    Thursday, November 06, 2008 4:33 PM
  • Hi,

     

    The error 10060 means a connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.

     

    Therefore, as Zohaib suggested, you can manually telnet to the remote Mail Server to check the issue. You can also enable SMTP logging on the SMTP virtual server for more detailed information.

     

    Note: Please select all extended logging options in order to get the most detailed information.

     

    Mike

     

    Monday, November 10, 2008 3:48 AM
  • Hello,
    Thanks you both for replies.
    As we are behind proxy and firewall from supplier, some traffic was blocked. It is now all resolved and working fine.

    Thanks again for suggestions

    Regards
    Monday, November 10, 2008 8:19 AM
  • Hi, glad to know that issue resolved.
    Monday, November 10, 2008 8:31 AM