Earlier today, I wrote:
> On Tue, 27 Mar 2001, David Saez Padros wrote:
>
> > - option to accepts messages when callback verify times out instead
> > of rejecting it, some mailers do not retry and fail to send the
> > message
>
> Noted.
I should have added two things:
(1) Exim currently gives a 4xx response if the callback times out. If other
MTAs do not retry after this response, that is their problem, not mine.
(In Exim 4, the response will be after the first RCPT; perhaps they will
behave better on that.)
(2) "Noted" means "I'll think about it". As it happens, I was thinking
about this stuff for Exim 4 today. It seems to me not be be a very good
idea because once the spammers discover this, all they have to do is to
set a return address that resolves to a domain that times out.
--
Philip Hazel University of Cambridge Computing Service,
ph10@??? Cambridge, England. Phone: +44 1223 334714.
