Thanks to Mail::Audit for:
- Showing that reasonable mail filters can be written in a scripting
language.
Thanks to TMDA for:
- Showing that an aggressive SPAM heuristic coupled with a confirmation
system is an effective technique for reducing SPAM.
- The idea of tacking on an HMAC to address extensions (Mail::AddressTagger).
Joakim Andersson - Initial implementation of the filter method. Pavel Kolar
- but report (1.8.0 incompatability)