Re: IMAP /etc/userdb and postfix

Postmaster wrote:
> I'll ask and duck... It appears as though several have gotten flamed for
> the same question - but I'll be da**ned if I can find it.
>
> I think I now have postfix mail receiving to real *nix accounts as well
> as virtual. I used the create of /etc/userdb, manually duplicated then
> entries for the virtual domains, and then set the password for
> each...the /etc/userdb file looks reasonable.
>
> In my various trys to access the mail, other than by "cat" or "less" of
> the /var/mail/vhost/domain-name/user, I have not implemented a
> successful retrieve. It appears as though I wish to implement
>
> local_recipient_maps = something...
>
> but "something" is not obvious. I am trying to avoid cyrus sasl mysql
> etc., etc. I'm only talking a dozen users for each of 3 domains.
>
> My apologies to Wietse...but what is the "something" if I have
> implemented the courier imap specified /etc/userdb ?
>
> ducking and covering...
>
> - Bill
>

You will probably want to make sure you have the maildrop (the courier
version) configured in master.cf, something like:

maildrop unix - n n - - pipe
flags=DRhu user=mail argv=/usr/bin/maildrop -d ${user}@${nexthop}
${extension} ${recipient} ${user} ${nexthop}

Change mail to whatever user you want the maildrop to be run as...

Then in your main.cf, make sure your virtual_transport (or
local_transport for your local users) is set to:

virtual_transport = maildrop
# and/or
local_transport = maildrop

This will ensure that you are delivering the mail to the location that
userdb is configured for.

For creating the userdb entries, I use the following:

mkdir /etc/courier/userdb/
chown -R vmail /etc/courier/userdb/

for (all email address for all domains) {

/usr/sbin/userdb "example.com/spamtrap@example.com" set
home=/var/mail/vhost/example.com/spamtrap
mail=/var/mail/vhost/example.com/spamtrap uid=8 gid=8

# you will probably need to change uid and gid to what your user you
want to deliver mail as...

}

/usr/sbin/makeuserdb

As you can see the courier-maildrop on my system is configured for
/etc/courier/userdb/ rather than just /etc/userdb, YMMV.

Hope to help,

Damien