Edit spamd.conf to specify blacklists and whitelists
all:\ :uatraps:whitelist:
uatraps:\ :black:\ :msg="SPAM. Your address %A has sent spam within the last 24 hours":\ :method=http:\ :file=www.openbsd.org/spamd/traplist.gz
whitelist:\ :white:\ :method=file:\ :file=/var/mail/whitelist.txt