On Mon, 13 May 2002, Paul Smith wrote:
In that case, it depends whether the 'home' MTA would change the MAIL FROM
in the envelope to be someone at the home MTA's domain or leave it as the
original MAIL FROM address. (It can often be a bad idea to leave it as the
original MAIL FROM address because bounces can be very confusing then...)
It can also be a bad idea to change the MAIL FROM, because bounces then
may not get to anybody.
But I don't want to argue about which is the better way to do it. The
point is that some MTAs do not change the MAIL FROM. So this case must
be dealt with.
If the envelope is changed to be someone at the home MTA's domain, then
this type of checking won't be any different from a mail sent directly from
the home MTA.
True, but that's not really the point.
--
Philip Hazel University of Cambridge Computing Service,
ph10(_at_)cus(_dot_)cam(_dot_)ac(_dot_)uk Cambridge, England. Phone: +44
1223 334714.