Zack, > Does anyone know if the existing code works with bdb 3 and/or 4? Yes, the current code works with v3.x and v4.x of BerkeleyDB. You can specify what installation directory bogofilter should use with the --with-db=/path/to/BerkeleyDB configure option. Adrian For summay digest subscription: bogofilter-digest-subscribe at aotto.com