On Mon, Nov 08, 2010 at 02:30:33AM +0100, Michael Sperber wrote: > . and indeed, telnetting to the Exchange server shows "AUTH GSSAPI > NTLM" ...
The Postfix SMTP client can do GSSAPI, if you place a suitable
keytab on the Postfix server, and use it from cron to keep a
credential cache file current.
If you want to use a password, your Exchange administrator needs
to enable AUTH PLAIN.
--
Viktor.
