Created attachment 11468 [details] Level 10 Debug Log A fresh installed Windows 10 and Office 2013 oder 2016! Starting up Outlook as a Domain User and creating an IMAP based account fails. Doing the same with a logcal Account does not fail. According to this post, this does not happen with windows 2012R2 https://social.technet.microsoft.com/Forums/de-DE/9983a475-856a-4ff8-8aa2-1e430ebd293a/outlook-2013-window-10-imap-domne?forum=office_generalde Attached a Level 10 Debug log from the client on the samba server Samba Veriosn is:Version 4.2.4-SerNet-Debian-7.jessie The logfile covers the time frame within outlook, when entering email server data and press "next" until the failure occurs
Created attachment 11472 [details] Screenshots from Outlook - To reproduce the error
If the domain was created before Samba 4.2, then you may need to do this: https://lists.samba.org/archive/samba/2014-November/187205.html Assuming that fixes it, I'll mark this as a duplicate *** This bug has been marked as a duplicate of bug 11097 ***
As a feedback: That resolved the issue - outlook 2016 works now