Hello, I'm finding a way to have a pool of smtp-auth servers in front
of my actuals servers to permit relay to our customers. Now users sends
emails connecting to the right IP via mail.domain.tld, with
authentication. Every server has it's own user database in mysql.
I'd like to have a pool of server (with round robin, ideally with
postfix + sasl + dovecot) that authenticate the users with the actuals
servers and then pointing mail.domain.tld to this pool and not to one
server.
My trouble is how to authenticate users.
Can I use:
http://wiki.dovecot.org/Authentication/MultipleDatabases
to tell Dovecot to authenticate with every MySQL database on the servers
"behind"?
If yes, is there a better way to do this considering I'm already using
some proxy machines (dovecot) for pop3/imap and so I already have a db
with domain.tld -> IP of the server? I also have some machine without a
MySQL DB for users (vpopmail + cdb), so the option with
MultipleDatabases will be good only for some machines.
Something similar to the proxy mechanism that I already use for
pop3/imsp will be good: the proxy connect to the machine behind that do
the authentication, I only need a table with domain -> server IP (that I
already have).
Thanks for any advice.
