Larry Rosenman wrote: [...]
I think $100/year is STEEP, if it is PER SERVER, but per COMPANY/INDIVIDUAL it **might** be acceptable.
(I have 3 boxes + the laptop that do SMTP regularly).
Ideas given this?
Relay through your upstream (hierarchical approach)? i.e. Register your server(s) with your provider, who is presumably trusted (registered with the global system). A bit of an aside: I recall AT&T Canada blocked all SMTP from exiting their network (excepting their own servers, of course) a few years back in response to a large spam. I don't know the details -- this is from a response to a complaint I filed. Interesting idea, though -- you then catch 'em when they attempt to relay through your server. And as far as that goes, I've seen a system that worked quite well... Larry might be familiar with it, as it was his. Peter E. Fry