The dnsproxy daemon is a proxy for DNS queries. It forwards these queries to two previously configured nameservers: one for authoritative queries and another for recursive queries. The received answers are sent back to the client unchanged. No local caching is done.
The pftabled daemon is a small helper to make your pf tables reachable from other hosts. You can add/delete/flush IP addresses to/from a remote table with a single UDP datagram.
The dnsreflector daemon listens for DNS queries on a local UDP port and answers with records pointing back to localhost. Combined with OpenBSD's pf this works as a bandwidth efficient spamtrap.
Patches and addons for Mutt.
Patches and addons for software by D.J. Bernstein.