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Subject: Re: Sending mail
From: Pierre MONDIE (pmcti.ecp.fr)
Date: Thu Jul 06 2000 - 03:44:18 CDT

On Thu, 6 Jul 2000, David Terrell wrote:
> Date: Thu, 6 Jul 2000 00:22:21 -0700
> To: Pierre MONDIE <pmcti.ecp.fr>
> From: David Terrell <dbtmeat.net>
>
> >
> > Strictly speaking, there is no way to enforce this with SMTP only,
> whatever
> > software you plan to use : blame SMTP design for this.
>
> This is not particularly true. SMTP has SASL extensions and I
> believe Postfix supports them. This can include user authentication
> with a password.
>

Thanks for the message : I took some time to check this and found out that
you are right and I was wrong : these extensions are documented in :

ftp://ftp.isi.edu/in-notes/rfc2554.txt
ftp://ftp.isi.edu/in-notes/rfc2831.txt

And are definitively a better method than POP-berfore-SMTP hacks.

Sendmail 8.11 seems to support all this, but I did not find in any public
postfix documentation mention of support for these interesting features.