> > im searching for all non-free comercial services in Spamassasin. > > > ATM i found: > dns_query_restriction deny sorbs.net > dns_query_restriction deny bl.mailspike.net > dns_query_restriction deny wl.mailspike.net > Spamcop (ZEN) > > Does i need to disable other services as well? > cant find any official information. > > > We have high mail volume so "free" use is not possilbe. > >
I am also thinking of scaling the email business for quite some time, but did not do shit in practice. However I was wondering what the limits are you are reaching? Eg. if you are borderline, maybe you could think about how to arrange your processing flow. I don't think it is efficient to use dnsbl in spamassassin. With rearranging your processing I mean before you even start doing dns lookups start rejecting emails. The other thing I can think of is rearranging your dns servers and caching so you bring back the amount of queries you send there.