Marc Perkel (marc@???) said, in message
<422A8707.5050709@???>:
>
> I had a friend make an interesting suggestion. He said, "Why not check
> the sending IP to see if it can receive anything on port 25?" The idea
> being that a spammer might be sending on port 25 but can't receive
> anying on port 25.
>
> Has anyone try this?
Well... that would make you reject all mail from here. Our outbound mail
servers don't accept port 25 from outside the firewall.
Cheers,
Alun.
--
Alun Jones auj@???
Systems Support, (01970) 62 2494
Information Services,
University of Wales, Aberystwyth