On Sun, Nov 16, 2003 at 08:50:24PM +0100, Manuel Bouyer wrote:
> On Sun, Nov 16, 2003 at 07:46:12PM +0100, David Wetzel wrote:
> > hi folks,
> > 
> > is it possible to block all hosts that have "dialup" in their full qualified hostname?
> > how?
> 
> It's not possible with ipf (this would mean you need a DNS resolver
> in the kernel).
> It may be possible with host.allow/hosts.deny.
> See hosts_access(5).

Hum, I didn't notice your question was sendmail-specific.
hosts_access(5) is still valid here, but you should also be able to do this
in the sendmail.cf. I don't know the sendmail.cf language, though.

-- 
Manuel Bouyer <bouyer@antioche.eu.org>
     NetBSD: 24 ans d'experience feront toujours la difference
--