[Mimedefang] Curious about a couple of things in mimedefang-filter

[Jim McCullars]

On Mon, 12 Aug 2002, Nels Lindquist wrote:

> > ^Received: from info.uah.edu ([some IP that is overseas]) ...
> >
> > and I would love to reject them immediately (if they are not indeed
> > info.uah.edu calling).
>
> Mismatches between the SMTP HELO string and the DNS PTR record are
> very common.  Heck, mismatches between the DNS A record and the DNS
> PTR record are pretty common--assuming the PTR record exists at all.
> Multiple domains may be hosted on one IP address, virtual hosts may
> not announce themselves properly, and so on.  I think you'd end up
> rejecting a lot of legitimate mail that way.

   I understand that, but I am just looking to reject the specific case
where a remote MTA presents itself as info.uah.edu (my host name).  For
some reason, several spam programs do this.

Jim