RE: selective greylisting?
- Hello Ralf,
Ralf Hildebrandt wrote:
> That's only possible in the policy daemon itself, so patchThat doesn't make sense as we have the query to the RBL before he wants to
> the daemon that implements the greylisting.
use the greylist daemon.
Did you mean to patch sqlgrey in an way to let sqlgrey do the RBL checks
instead of postfix? That would be the only way maybe, yes...
> Cami's policyd is "asynchronous", so needs an asynchronous resolver.Not sure what you are trying to say here.
> There aren't much async resolver implementations out there, and the
> available ones haven't been used enough. also, people are used to their
> system resolver (integration with nsswitch and the like)...
p0f has nothing to do with DNS, it just passively examines packets
of normal SMTP sessions, just like tcpdump, trying to guess what
type of network stack is running on remote side.