On 12.12.2016 13:29, Mart Pirita wrote: > Aki Tuomi wrote: >> Can you do >> >> doveconf -a | grep auth_mech >> > auth_mechanisms = plain login > > P.S. Seems this 2.2.24 is the last win10 compatible version (as my > testserver doesn't have win10 users and thunderbird works well), any > never version gives an error. However I didn't find any hint from > http://www.dovecot.org/list/dovecot-news/2016-July/000324.html etc. > > >
https://wiki2.dovecot.org/Debugging/Rawlog can you try this to get rawlogs to find out what happens? Aki