Quoting Ed Greshko Ed.Greshko@greshko.com:
What do you get when from "netstat -nap | grep 143"?
# netstat -nap | grep 143 tcp 0 0 127.0.0.1:143 0.0.0.0:* LISTEN 1055/dovecot tcp 0 0 ::1:143 :::* LISTEN 1055/dovecot
[and some irrelevant stuff that happened to have "143" in it]
Assuming this confirms your suspicion, what do I need to do to fix it?