Lähettäjä: Andrew D Päiväys: Vastaanottaja: exim-users Aihe: Re: [Exim] sender_reject question
----- Original Message -----
Sent: Friday, May 04, 2001 8:14 PM
Subject: Re: [Exim] sender_reject question
> > > 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). The problem is that exim has to go past that point to scan the headers or
body or what have you, for this type of filtering.
cya
Andrew
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Linux is like living in a tipi: No windows, no gates, Apache inside