Re: [exim] Protocols

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Author: Ron McKeating
Date:  
To: peter
CC: Exim Users
Subject: Re: [exim] Protocols
On Thu, 2004-11-04 at 11:02, Peter Bowyer wrote:
> On Thu, 04 Nov 2004 10:55:42 +0000, Ron McKeating
> <r.j.mckeating@???> wrote:
> > Hi all, got a little bit of confusion over protocols here and was
> > wondering if somebody could point me to the definitive explanation.
> >
> > Normal users on port 25 go in the exim log as P=smtp
> >
> > authenticated users I would expect to see as P=asmtp
> >
> > and Outlook express users on port 465 I was sort of expecting to see
> > P=esmtp
> >
> > But all authenticated users now appear in the log as P=esmtpsa
> >
> > this is the same for normal (sensible) client users on ports 25/587 and
> > OE users on port 465. Has something changed in the latest version of
> > exim, or has it always been this way?
>
> From ChangeLog-4.42:
>
> 12. RFC 3848 specifies standard names for the "with" phrase in Received: header
>     lines when AUTH and/or TLS are in use. This is the "received protocol"
>     field. Exim used to use "asmtp" for authenticated SMTP, without any
>     indication (in the protocol name) for TLS use. Now it follows the RFC and
>     uses "esmtpa" if the connection is authenticated, "esmtps" if it is
>     encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
>     names appear in log lines as well as in Received: header lines.

>


God you lot are good, thank you very much for a prompt, clear and
accurate explanation. Now I am of course embarrassed that I did not look
it up myself if it was in the change log. Lesson learnt.

Ron
> Peter

--
Ron McKeating
Senior IT Services Specialist
Internet Services and Software Solutions
Loughborough University
01509 222329