Spamdb

Spamtrap addresses are defined here
Whitelists, greylists, and trapped addresses are stored here
Grey and Trapped lists are stored as "tuples" [sic]*
* tuples are a pair, these are really triples (from, to, sender IP)
Spamd updates pf tables from this database
Spamdb lists have timestamps and will expire (not spamtrap addresses)