Okay, I almost have the mini mail server set up. I created all of the users, and they are all able to log in via Squirrelmail.
Users are able to send out mail and check their email via Webmail, but I cannot receive mail. Under the server logs, I see this:
Oct 31 23:51:36 MailServer postfix/smtpd[18576]: connect from localhost[127.0.0.1]
Oct 31 23:51:36 MailServer postfix/smtpd[18576]: 4670028450: client=localhost[127.0.0.1]
Oct 31 23:51:36 MailServer postfix/cleanup[18571]: 4670028450: message-id=<52201.130.73.245.35.1162360287.squirrel@webmai l.cdc10.com>
Oct 31 23:51:36 MailServer postfix/qmgr[18540]: 4670028450: from=<bowser@cdc10.com>, size=1254, nrcpt=1 (queue active)
Oct 31 23:51:36 MailServer postfix/smtp[18560]: connect to mail.cdc10.com[130.73.245.35]: Connection refused (port 25)
Oct 31 23:51:36 MailServer postfix/smtpd[18576]: disconnect from localhost[127.0.0.1]
Oct 31 23:51:36 MailServer postfix/smtp[18560]: 4670028450: to=<ragnaros@cdc10.com>, relay=none, delay=0, status=deferred (connect to mail.cdc10.com[130.73.245.35]: Connection refused)
Oct 31 23:51:36 MailServer postfix/smtp[18572]: D31CF2842B: to=<ragnaros@cdc10.com>, relay=127.0.0.1[127.0.0.1], delay=9, status=sent (250 2.6.0 Ok, id=00844-06, from MTA: 250 Ok: queued as 4670028450)
Oct 31 23:51:36 MailServer postfix/qmgr[18540]: D31CF2842B: removed
The message then shows up in the Queue and won't leave. I can send mail to other people, but my users cannot receive from outside or internal addresses. My firewall is completely off for this, and our main router definitely has port 25 open for both TCP and UDP. Any ideas?