Hello! according to #1096505, it is planned to remove db5.3 from the next Debian release. sasl2 still depends on that according to the package manager. This also affects cyrus-imapd. Is it planned to make cyrus-sasl2 work without it?
There is an alternative lmdb backend, which we could enable.
Please see work-inprogress git branch debian/bug-1117122.