1 Reply Latest reply on May 11, 2010 5:03 PM by rcamm

    sg560 - Configure to allow IMAP traffic, port 143

      I am looking to allow IMAP traffic so a Mac can connect to my Exchange Server 2003.  For some reason, I cannot connect to the port from outside.
      When I "telnet 127.0.0.1 143"
      I get:
      * OK Microsoft Exchange Server 2003 IMAP4rev1 server version 6.5.7638.1 (name.servername.local) ready.

      When I "telnet name.servername.local 143"
      I get:
      * OK Microsoft Exchange Server 2003 IMAP4rev1 server version 6.5.7638.1 (name.servername.local) ready.
      ***I assume that this is telling me that the port on the Server is configured correctly.

      When I "telnet exchange.servername.com 143"
      I get:
      Connecting To exchange.servername.com...Could not open connection to the host, on port 143: Connect failed
      ***I assume that this is telling me that the Firewall is blocking the connection.
      This is my configuration:
      IMAP-TCP Accept Forward Any Any Any SBS2003  tcp/143  (my configuration)
      SBS-HTTPS Accept Forward Any Any Any SBS2003  HTTPS     
      SBS-HTTP Accept Forward Any Any Any SBS2003  HTTP (Web) 
      (both HTTPS and HTTP work properly)

      ***USING canyouseeme.org
      I get:
      Error: I could not see your service on x.x.x.x on port (143) Reason: Connection timed out
      Success: I can see your service on x.x.x.x on port (443) Your ISP is not blocking port 443
      Success: I can see your service on x.x.x.x on port (80) Your ISP is not blocking port 80

      Any ideas what could be preventing 143 from working?