Allen Coates: > GIVEN THAT, when the Postscreen internal SMTP engine is invoked, the > decision to reject the message has already been made; > It seems to me that this is an opportunity to tar-pit the (bad) remote > host, diminishing spam throughput, and eroding the host's useful life-span.
postscreen could hand off a connection to some other daemon. Keeping connections open *inside* postscreen is definitely not an option. That would limit postcreen's scalability. With a tarpit-only daemon, failure in that daemon would not affect other connections. Wietse