9.4 Testing saslauthd and postfix

Before configuring Identity Manager to use the postfix MTA server, you need to test saslauthd and postfix.

  1. To test saslauthd, select Gnome Terminal from the Computer menu, then enter testsaslauthd -u admin -p n0v3ll.

    The message 0:OK success is displayed if it is working.

  2. To test postfix, enter telnet 172.17.2.117 25.

    If you can telnet to port 25 on the server, postfix is running and has authentication enabled. If it connects, the following message is displayed:

    Trying 172.14.2.117
Connected to 172.17.2.117
Escape character is ‘^]’
220 metaserver1.yourcompany.com ESMTP Postfix

  3. After you are connected, enter ehlo localhost.

    It displays the following message:

                250-mail.example.edu
     250-PIPELINING
     250-SIZE 31457280
     250-VRFY
     250-ETRN
     250-AUTH NTLM LOGIN PLAIN DIGEST-MD5 CRAM-MD5
     250-AUTH=NTLM LOGIN PLAIN DIGEST-MD5 CRAM-MD5
     250 8BITMIME

  4. The AUTH line contains LOGIN, which show the postfix requires a login before forwarding mail.

  5. Enter quit to close the telnet session.

  6. Enter exit to close the Gnome Terminal.

  7. Proceed to Section 9.5, Configuring Identity Manager to Use Your postfix MTA Service.