Greetings, I've inherited a rather kludgy email system consisting of an overpriced, underpowered spam filtering appliance which I would very much like to replace with a simple *nix box running Postfix and some manner of spam filtering software (ie spamassassin).
I would like to be able to keep the present scheme of how mail is passed around if possible, but I'm not entirely certain where to begin with respect to Postfix. Currently, our mail flow looks like this: -MX for domain points to the spam filtering appliance -Appliance handles user verification (via ldap), rejection, quarantine, etc -'Clean' mail handed off to MTA for final delivery The slightly funky part is that there are a number of destination MTA servers, each servicing a subset of domains and mailboxes. A configuration setting on the Appliance maps each domain to its destination MTA server. Is it possible to set up Postfix as a drop-in replacement for this appliance? Can I tell it "here are the domains to accept mail for, here is an LDAP full of mailboxes to accept, and here is a hash/sqldb mapping each domain to its destination MTA" Any advice or pointing in the right direction would be greatly appreciated, as I'm really not sure how this all falls under the Postfix definitions of canonical, virtual, relay, etc. Many thanks, J Fox
