- Multiplexing policy requests and DNS queries via select()

- probably milter capabilities

- probably external hooks at certain stages

- porting for other MTAs (helpers welcome)

- packaging for other systems (helpers welcome)

- IPv6 support
  Need someone who can do this, since we have no IPv6 environment for
  testing here. 
  For now IPv6 clients are recognized and pass unchecked.

- proper documentation (helpers welcome)

- man page for config settings (in progress)

- probably SPF support (scored)
  Problem: DUL listed DynDNS MX users might get rejected if they
  use a "mail from:" like user@yahoo.com but deliver direct.

- SNSD (Spammy NS Detection)
  Shall detect NS servers which excessive host Spam-Domains

- ADD  (Abused Domain Detection)
  Shall detect Domains which are frequently forged and may not be used
  by Dynamic Clients unless they got a DynDNS MX as verified HELO
