On Fri, 1 Jul 2016 11:55:20 +0200 Achim Gottinger <achim at ag-web.biz> wrote: > Do you have /usr/lib/dovecot/modules/auth/libmech_gssapi.so? Maybe at an > different location. On debian this comes with the dovecot-gssapi package. That module is nowhere on my system. --Mark