Postfix can handle that. You can have multiple lookup tables/maps. They do not even have to be the same type of database.
I guess I can leave that part upto Postfix, but I still need a antispam addin...
I asked on the Postfix list a while ago whether multiple LDAP server lookups could be configured and received no response. I assumed no one had done it. I'll just have to reserve some time to actually try it!
Like others have already said, lose it or fix it.
Well, therein lies my trouble. With the poor support around my current product I can't fix it (Don't know how). I had to loosen up the primary so it would stop rejecting good mail from the secondary, it's nothing short of a proper mess, I know. Hence the look for alternatives....
postfix + spamass-milter will do it.
I'll give a second look at sa, I haven't looked at it in a while (years) but remember it being rather indepth.
Thanks!