[exim] Outlook, Exim and TLS.

I'm having a problem on our department mail server with trying to get Outlook
2k3 and 2k7 to send mail with TLS.

It works for all other mail clients that I have tried, but Outlook is being
stubborn. Outlook doesn't provide any helpful error messages and the logs from
exim show the following:


Dec 9 14:14:44 mf01 exim[23357]: 2008-12-09 14:14:44 TLS recv error on
connection from box.sit.auckland.ac.nz (aalawi7) [130.216.39.167]: A TLS packet
with unexpected length was received.
Dec 9 14:14:44 mf01 exim[23357]: 2008-12-09 14:14:44 TLS send error on
connection from box.sit.auckland.ac.nz (aalawi7) [130.216.39.167]: The specified
session has been invalidated for some reason.
Dec 9 14:14:45 mf01 exim[23358]: 2008-12-09 14:14:45 login authenticator failed
for box.sit.auckland.ac.nz (aalawi7) [130.216.39.167]: 435 Unable to
authenticate at present (set_id=acal030): Error in service module


Dec 9 14:15:57 mf01 exim[23494]: 2008-12-09 14:15:57 TLS error on connection
from box.sit.auckland.ac.nz [130.216.39.167] (gnutls_handshake): A TLS packet
with unexpected length was received.


Has anyone come across this before? I had a search through the archives / FAQ
and was unable to see anything directly related.

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Drew Calcott
Linux System Administrator
Science IT
University of Auckland
(p) +64 9 373 7599 x84269