On Sat, 19 Mar 2005 10:18:06 UTC, ":::Jerry::::" wrote:

"Alec" uses as his return address, the
point I'm making is that 'doesnotexist.demon.co.uk could well be a
valid email / domain address, who do you think will get the spam sent
to Alec's quoted return address ?

Fair point. Unless, of course, Demon have provided that address for
customers' use. Are you sure they haven't?

Also, if the address *doesn't*
exist, as the address could be real email servers are not going to
just dump any mail, they are going to attempt to deliver it for how
ever long they have been set up to do so - thus using up sever
resources etc.

No...if the DNS lookup fails, they'll throw it straight back.

--
Bob Eager
begin a new life...dump Windows!