spamdb and Greytrapping

Enter obviously bogus addresses into your blacklist with spamdb -T

peter@delilah:~$ spamdb -T -a "<wkitp98zpu.fsf@datadok.no>"

other useful options:

-t enter IP address as TRAPPED,

-d delete entries

Modern spamdb does not need quote characters or < >:

peter@delilah:~$ spamdb -T -a wkitp98zpu.fsf@datadok.no