Hi Vince,
I have been using for more than four months a setup similar to yours (Postfix +
dmail) on a production server with about 80 mailboxes. It works flawlessly. I
used the configuration suggested in a previous message on this list
(http://mailman2.u.washington.edu/pipermail/imap-uw/2008-April/001993.html),
but I don't care about procmail. I use imap 2007b and it is very stable in my
setup.
For testing purposes, I first created a mix mailbox in my account and relied on
snarfing. Further, I tested dmail, and finally I used a small script to convert
all the mailboxes to the mix format. Joel Reicher gave me valuable help during
my initial setup. You may rely on his advice, posted a few minutes ago.
The conversion script I used is quite simple:
#!/bin/bash
GROUP=biochim
HOMEDIR=/home/users/$GROUP
SPOOLDIR=/var/spool/mail
USERS=`ls -1 $HOMEDIR | sed 's/\/$//g' | grep -v www`
for USER in $USERS; do
echo $USER
INBOX=$HOMEDIR/$USER/INBOX
SPOOL=$SPOOLDIR/$USER
if [ -s $SPOOL ]; then
mixcvt -u $USER $SPOOL $INBOX
chgrp -R $GROUP $INBOX
mailutil prune $SPOOL all
fi
done
I stopped Postfix and disabled the accounts while running the script above, as
the conversion was very fast (a few minutes) for about 80 mailboxes (~ 1.5 GB).
I also made a fresh backup of the Unix spool directory prior to running the
script. The clues are appropriate mailbox names given as arguments to mixcvt
(mixcvt is a little tricky in this respect) and group ownership change after
running mixcvt as root. It is important to use mixcvt instead of mailutil in
performing the conversion, as only mixcvt will split the mailboxes into small
files, thus preserving all the advantages of the mix format.
Hope it helps,
Marius Micluta
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