Mail Queue Filling Up

Question

Came into the office this morning and everyone is complaining they didn't get any email over the weekend. I log into SA to notice over 300 emails stuck in the queue. I found a couple threads regarding this and this one particularly is almost my exact situation:
http://discussions.apple.com/thread.jspa?messageID=1891076&
With the exception of upgrading the OS. I did actually have to add a virtual IP address to the same NIC that has the IP for our email. I did this because I was having SSL issues:
http://discussions.apple.com/thread.jspa?threadID=612479&tstart=0
Since I wasn't adding a new IP and not so much changing an IP, I didn't use the "changeip" command. Following some of the instructions from the above mentioned thread, I ran "sudo postsuper -r ALL" and this didn't seem to help at all. I then issued a "/sbin/reboot" to restart the email server and now it is in the process of sending all the email that are in the queue. Send and receive email is working properly.
So why the post since I have solved my own problem?
Because it makes me nervous that after adding an additional real-world IP to the extra NIC installed on the server, that it has been behaving this.
So... any thoughts or suggestions on how to prevent this in the future or how to fix this? Thanks.

Answer 1

Ahhh! Yes, I did create an actual user for postmaster
and am using it so I could have an additional email
account in Mail.app to monitor email that was
improperly addressed. Usually I find about 1-2
emails a week where someone improperly mis-spelled
someones address and therefore I send it on to the
right place.
Should I delete the "postmaster" account in WGM? But
then how would I be able to check it's email?
Have a look in /etc/postfix/alias. The alias name is on the left (postmaster) and the name of the mail account used for it is on the right. Replace with your own short name or another (I usually set up a separate mailadmin user). But I don't really think that is causing your problem - its the actual receiving undeliverable mail which is generating the bounces back out.
Also in /etc/postfix/main.cf what's the difference
between "myhostname" and "mydomain". I have them
both configured the same with "mail.domain.com".
Should one be "domain.com" and the other
"mail.domain.com"?
myhostname is normally your hostname ( eg mail.domain.com) - what you want your server to use in its 'helo' command. Ideally should be the same as your MX record (and PTR record for your IP). Ideally they should all match but sometimes difficult.
mydomain - eg domain.com
Note that you will have to put the domain into the Local Hosts Alias pane (if not already there) if you previously only had it as your myhostname.
-david