On Sat, Mar 16, 2019, at 11:12 PM, sergio via dovecot wrote: > I'm subscribed, please reply to list directly. > > > ssl_dh is required from 2.3.0-2.3.2. From 2.3.3 onwards its optional. > > You can rm the ssl-parameters.dat file to get rid of that warning. > > I have no ssl-parameters.dat file. Did you check /var/lib/dovecot ? -- K