I forgot to say that at present we still need the use of the PLAIN mechanism. Is it possible to only accept PLAIN (and LOGIN, for that matter) after TLS or on the imaps port?
Sure:
allowplaintext: no
Cheers, Sebastian Hagedorn -- Sebastian Hagedorn M.A. - RZKR-R1 (Gebäude 52), Zimmer 18 Zentrum für angewandte Informatik - Universitätsweiter Service RRZK Universität zu Köln / Cologne University - Tel. +49-221-478-5587