On 8/30/2004 14:41, "Stephen Gran" <steve@???> wrote:
> On Mon, Aug 30, 2004 at 09:53:38PM +0200, Olaf Föllinger said:
>> On Mon, Aug 30, 2004 at 09:26:26PM +0200, Olaf Foellinger wrote:
>>> I'm trying to connect to an Exchange server which is configured to use
>>> encryption and authentication. I get the error message
>>>
>>> 2004-08-30 21:22:49 I39XBN-0001D4-MO == of@??? R=send_to_smart_host
>>> T=remote_smtp defer (-42): authentication required but no common
>>> mechanisms were found
>>>
>>> How do I find out which mechnisms are supported by the server?
>>
>> O.k., I've found out by adding all mechanisms that are documented. The
>> server uses LOGIN.
>
> The simplest would be to just ask what is offered, for example:
>
> steve@gashuffer:~$ nc mail 25
> 220 mail.lobefin.net ESMTP Exim 4.34 Mon, 30 Aug 2004 17:40:19 -0400
> ehlo me
> 250-mail.lobefin.net Hello www.lobefin.net [216.158.52.108]
> 250-SIZE 52428800
> 250-AUTH LOGIN PLAIN
> 250-STARTTLS
> 250 HELP
By all means, start that way.
BUT, a machine *may* offer something different after one starts a TLS
session than before. (For instance, an admin may elect not offer PLAIN and
LOGIN outside a TLS session, although that can make working with older
Outlook versions "troubling".) I'm not clever enough to start a TLS session
from the keyboard. ;-)
--John
