Re: asmtp 587 - quickie faq submission

From: Lupe Christoph (lupe@lupe-christoph.de)
Date: 09/11/02 

Date: Wed, 11 Sep 2002 17:30:03 +0200
To: Greg Panula <greg.panula@dolaninformation.com>
From: lupe@lupe-christoph.de (Lupe Christoph)

On Wednesday, 2002-09-11 at 07:29:26 -0500, Greg Panula wrote:
> Ok, here is the cleaned-up faq submission for asmtp & port 587.

Ok, here is further nitpicking :-)

> Q: What is ASMTP?
> A: Authenticated SMTP, explained in RFC 2554

> Q: What is ASMTP good for?
> A: Allow the SMTP server to authenicate users before allowing them to
                                    ^t
> use the smtp service for sending mail. Useful if you have roaming users
> that connect from foreign networks(e.g. hotel somewhere).
Buddy can you spare a space ^here?

> Q: How do I or my users make use of ASMTP?
> A: The user's email client needs to be configured to authenicate
                                                             ^t
> themselves to the smtp server. Earthlink has a FAQ section explaining
clients/themselves or client/itself
> various email client configurations at
> http://support.earthlink.net/mu/1/psc/img/walkthroughs/Help_FAQ/7280.psc.html

> Q: How do I implement ASMTP on my mailserver?
> A: Depends on your MTA. For information about configuring ASMTP&Postfix
> checkout: http://howto.state-of-mind.de/

We still need an explanation for sendmail! I found nothing better than
http://www.sendmail.org/~ca/email/auth.html which doesn't look very
/usr/friendly to me ;-)

The default sendmail in FreeBSD is not compiled with SASL and does not
do ASMTP. I suppose one must install the sendmail-sasl port for this.
I'm doing that next, but can't test very much with it, due to my setup.

> Q: Why does Sendmail listen on Port 587?
> A: For compliance with RFC 2476 which states that seperating the
separating
> different parts of mail handling(submissions&transfers) is a good thing
                                  ^space
> and port 587 was deemed to be the port for handling submissions.
> Sendmail 8.10.0 introduced DaemonPortOptions to support this. Checkout
> http://www.sendmail.org/~gshapiro/8.10.Training/DaemonPortOptions.html
> for some quick info about DaemonPortOptions.

> Q: How do I turn off the Message Submission Agent aka stop Sendmail from
> listening on port 587?
> A: Add FEATURE(`no_default_msa') your config.mc config file and recreate
> your sendmail.cf file. Brief example of recreating your sendmail.cf can
> be found at: http://www.sendmail.org/m4/intro.html

Lupe Christoph 

-- 
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| thith great unthinkable conthept ..."                                  |
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