Hi,
I’m switching from using virtual mysql mapped maildir mailboxes to dbmail
(www.dbmail.org) style mailboxes and have an issue regarding
multisite/multidomain hosting.
I would like to be able to deliver based on the users email address to the
local delivery system or another server, this gives me the ability to map users
based on where their mailstore is located (ie 1 domain but 2+ locations). I
also need to ability to host different domains in the same way.
With using lmtp I can specify something like :
mailbox_transport_maps = mysql:/etc/postfix/mailbox_transport_maps.mysql
This allows me to have user1 in server1 mailstore and user2 in server2
mailstore. My problem with this is that by default, postfix assumes unix style
local delivery so the mysql lookup (ie %s param) is only the username part of
the email. So I can’t use this for multidomain support if there is a
john....@domain1.tld and a john....@domain2.tld .
In using ‘virtual’ in postfix, this works fine as the mailbox delivery usually
corresponds to using a /vmail/{domain}/{user.name} configuration so using 2 of
the same name with 2 different domains works fine. The only problem with this
is that it gives you no ability to have 2 users in 2 different mailstores ( or
locations ). Basically what I’m saying is that the problem with using virtual
instead of local is that there is no such thing as
virtual_mailbox_transport_maps =
mysql:/etc/postfix/mailbox_transport_maps.mysql
So I can map using lmtp:server1:24 and redirect a user to another server if
virtual_transport was using lmtp
I hope i’m clear on this, so with local delivery i can’t do
mailbox_transport_maps lookups and differentiate between 2 users of the same
name but in different domains and i can’t use virtual because i can’t locally
deliver individual users in different servers.
I could go out and make a subdomain and route via that but that’s really
clunky. I either have to deliver ‘local’ly to dbmail-lmtp and modify it to
realise the user is on another server or modify postfix to be able to lookup
using %...@%d instead of just %u..
Anyone got any ideas? Remember this is to be used with dbmail.
Regards,
George.
