I have setup my zcs and everything appears to work except I am not receiving any mail. I can send out fine. My setup is such that the mail server is internal only. Mail is received via another system that uses fetchmail to pull mail from my primary accounts and then sends them to zcs. I have a .forward file on the fetchmail server that sends the mail to zcs but the mail is never received. I have also manually tried to send messages via telnet to 25 and the message is queued but I never see it.

How do I determine where the mail is being held up? It appears that the mail is being sent and received (determined by looking at mail.log) on the fetchmail system. The following mail.log entry is an examle (info xxxx'd out).

Nov 22 10:51:38 ubuntu sm-mta[6885]: STARTTLS=client, relay=xxxxxxx., version=TLSv1/SSLv3, verify=FAIL, cipher=ECDHE-RSA-AES256-SHA, bits=256/256
Nov 22 10:51:39 ubuntu sm-mta[6885]: qAMGpYQX006883: to=<xxxxxx>, ctladdr=<xxxxxxxxxx> (1000/1000), delay=00:00:05, xdelay=00:00:05, mailer=esmtp, pri=909178, relay=xxxxxxxxx. [], dsn=2.0.0, stat=Sent (Ok: queued as C1E2524399B)

Any ideas on where I should start looking?