Configuring Postfix, Courier, and Courier-Maildrop for Virtual Users
March 23rd, 2009Here are some highlights for configuring Postfix to use Courier-Maildrop for local delivery.
This allows some advantages over just having postfix deliver, because you can do server-side filtering of spam and mailing list messages to de-clutter your inbox.
All these notes are based on configuring the setup on Ubuntu 8.10 (Intrepid Ibex) with Debian Lenny’s courier-maildrop
The following are snippets from my configuration files, highlighting the changes that I had to make, from an already existing mail server. If these look unfamiliar, or you need more assistance setting up the basic framework of a Postfix + Courier-IMAP mail server, start here.
1 2 3 4 5 6 7 | #/etc/courier/maildroprc EXTENSION="$1" RECIPIENT=tolower("$2") USER="$3" HOST="$4" SENDER="$5" DEFAULT="/home/vmail/$HOST/$USER/." |
1 2 3 | #/etc/postfix/main.cf virtual_transport = maildrop maildrop_destination_recipient_limit = 1 |
1 2 3 | #/etc/postfix/master.cf maildrop unix - n n - - pipe flags=ODRhu user=vmail argv=/usr/bin/maildrop -w 90 -d ${user}@${nexthop} ${extension} ${recipient} ${user} ${nexthop} |
So if you have a working mail server: make these changes, sudo /etc/init.d/postfix restart, and then get to work writing your .mailfilters!
