Hello,

I've read quite often that there are problems with ntlm_auth helper (last one here http://www.dovecot.org/list/dovecot/2014-June/096561.html). But haven't found any confirmation, neither it's working for anybody else nor that it's known taht this issue needs debuging.

Like for ohers, my authentication tests from the commandline with ntlm_auth exactly give expected results.

But initial authentication (with Outlook) fail at first, but after entering the user's password, nevertheless succeeds with mech=NTLM. See the attached ntlm-log.txt Can't exactly tell when this regression occured, one year ago nobody had to enter his password, it worked like intended with Outlook (which still is version 2010).

Any idea how to debug? It could be also a regression in samba, both highly appreciated applications were upgraded at the same time…

Thanks,

-Harry