courier smarthost forced to AUTH LOGIN

Hi everyone!

I can't make courier use AUTH LOGIN it seems to default to AUTH PLAIN. How can I
force AUTH LOGIN?

I have courier to relay (smarthost) mail to 2 mailservers at different ISP's.
But at ISP2's mailserver AUTH PLAIN failes.

I tried to set
esmtpd:
ESMTPAUTH="LOGIN"

but courier still use AUTH PLAIN. As this dump will show:

recv:
220 ISP2 ESMTP Tue, 25 Dec 2007 22:19:01 +0100
send:
EHLO mail
recv:
250-ISP2 Hello mail [127.0.0.1]
250-SIZE 52428800
250-PIPELINING
250-AUTH PLAIN LOGIN
250 HELP
send:
AUTH PLAIN xxxxxxxxxxxxxxxxxxx
recv:
535 Incorrect.authentication data

I'm running Debian:4.0r0/stable (sarge)
and have installed with apt-get:
courier-mta 0.53.3-5
courier-authlib 0.58-4
courier-authdaemon 0.58-4

I have tried with Thunderbird (that use AUTH LOGIN) and it works with the ISP2's
mailserver.

To ISP1's mailserver I use courier and AUTH PLAIN works with no problem.

Does anyone have a suggestion on my problem?

Regards
Benny Dyhr Thomsen