Graeme Fowler <graeme@???> (Mi 23 Jan 2008 00:07:18 CET):
> On Tue, 2008-01-22 at 23:32 +0100, Heiko Schlittermann wrote:
> > Other question was - but probably it's implementation dependend - how
> > the sender would behave. Does anybody know what exim would do. Restart
> > the SMTP transfer with agin all 300+ recipients if recipient 300 times
> > out? Or would exim try to reduce the number of recipients? (feature
> > request?)
>
> If it's a well-behaved MTA which respects the fact that the previous
> connection never reached a positive conclusion (ie. didn't receive a
> "250 OK" result for the entire transaction after sending the defined
> "message ends" signal, ".<CRLF>") then it should start the whole thing
> again after an appropriate delay.
>
> Those who are interested should read Ch.30 of the docs:
>
> http://exim.org/exim-html-current/doc/html/spec_html/ch30.html
>
> which include at the beginning the statement:
>
> "If a message contains more than max_rcpt (see below) addresses that are
> routed to the same host, more than one copy of the message has to be
> sent to that host."
Couldn't it be a kind of smart behaviour, if Exim (as sending MTA)
would detect the fact, that the connection died at some point during the
"RCPT TO" phase? And then for the next attempt Exim could reduce some
"internal" max_rcpt to higher the chance that at least one copy of the
message gets through? (And the other cop{y/ies} with other connections?)
--
Heiko
