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→postfix main configuration file: /etc/postfix/main.cf
...
</pre>
:* Switch to VM1, and login as a regular user. Execute the commands given in the "Command" column and record the output in the corresponding "Response" column for future reference. Do not proceed if the first command does not establish a connection to the SMTP port on the VM2, replace the place holder [VM2-IP-ADDR] with your VM2's actual IP address.
{| class="wikitable" cellspacing="0" width="90%" cellpadding="5" border="1" style="text-align: left; vertical-align: top; border-spacing: 2px; border: 1px solid darkgray"
|+ SMTP command / Response
|-
! - - - Command - - -
! - - - - - - - - - - - - Response - - - - - - - - - - - -
|- style="vertical-align: top; background: none"
| nc [VM2-IP-ADDR] 25
| 220 pri-dns.gbecker.ops ESMTP Postfix
|- style="vertical-align: top; background: #CCffCC"
| HELO seneca.ops
| <br> <br> <br>
|- style="vertical-align: top; background: #FFCCCC"
| ELHO seneca.ops
| <br> <br> <br>
|- style="vertical-align: top; background: #ccffcc"
| NOOP
| <br> <br>
|- style="vertical-align: top; background: #ffcccc"
|RSET
|<br>
|- style="vertical-align: top; background: #ccffcc"
|EXPN ops535m
|<br>
|- style="vertical-align: top; background: #ccffcc"
|VRFY root
|<br>
|- style="vertical-align: top; background: #ffcccc"
|QUIT
|<br>
|}
= Configure mailing list for postfix =
