greytrapping daemon to complement OpenBSD spamd
greyscanner compliments OpenBSD spamd(8) greylisting by applying
additional heuristics to greylisted hosts.  Additional heuristics
include: confirm senders email address is valid, confirm existence of
the senders MX or A record in DNS, confirm recipient address(es) is
valid, and more.  Offending hosts are flagged as 'trapped' in the spamd
database.

Maintainer: Jim Razmus II <jim@openbsd.org>

WWW: https://bitbucket.org/bonetruck/greyscanner/
