OSEC

Neohapsis is currently accepting applications for employment. For more information, please visit our website www.neohapsis.com or email hr@neohapsis.com
 
Re: SASL vs. M$ Outlook and Outlook Express

From: Magnus Bäck (magnusdsek.lth.se)
Date: Mon Jan 01 2007 - 06:42:17 CST

On Monday, January 01, 2007 at 13:34 CET,
     Tom Kovar <postfix_listkovarovi.org> wrote:

> I have been using successfully Postfix since good one year, and now I
> have extended it with SASL, using dovecot, with MySQL in the background
> for all authentications. Everything seems to be working fine, when I
> send the SMTP commands manually, authentication is successfull and
> sending e-mail works according to the rules.
> Not so from Micro$oft clients, where I always get "Relay access denied".
> Inspecting the Postfix-Syslog, after enabling debug, reveals the source
> of the problem - even if I enabled the "SMTP server requires
> authentification" check box in these clients, they still do not send the
> SMTP AUTH message. The sequence of SMTP messages is
> EHLO
> MAIL FROM:
> RCPT TO:
> and this inevitably leads to the failure.
>
> Can anybody help me what the problem with M$ might be?

Perhaps you're forgetting this:
http://www.postfix.org/postconf.5.html#broken_sasl_auth_clients

--
Magnus Bäck
magnusdsek.lth.se