Not really, in this year I had changed only 1 filter, the initial setup may be cumbersome, but the end result is worth the effort. And about the spam to random

Not really, in this year I had changed only 1 filter, the initial setup may be cumbersome, but the end result is worth the effort. And about the spam to random addresses, in 8 years the most extreme problem I had faced is spam to censored addresses like git...@domain.com (thanks google code).