> > so you can't do rejects at SMTP time. > > Though we can only hope that exim 4 will provide us that type of facility
> > :))
> > <nudge><nudge>philip :)
>
> OK, OK, OK, I get the message... :-)
>
> It will be possible, at least to a limited extent. But only, of course,
> at the end of the SMTP transaction.
I would like to see the ability to give a straight 550 in response to a MAIL
command, particularly if the address is for a non-existent local user. The manual
says "because remote postmasters always want to see the message headers..." but I
would have thought that, since the message is originating at their site the onus
should be on them to work out why they tried to send the message from a bad sender
address.
The manual goes on to say "there are a number of mailers in use that treat any SMTP
respose given after the data has been sent as a temporary failure". This problem
would not arise if we just hit them with a 550 after the MAIL command - if they try
to persist after that they will get the RCPT commands failing (503 No sender yet
given).
Phil.
---------------------------------------
Phil Chambers (postmaster@???)
University of Exeter
