The following capabilities have been added and are optional:

com.openexchange.guard.externalReaderURL
Configure the url for the external reader links

com.openexchange.guard-norecovery
Disables password recovery

com.openexchange.guard-nodeleterecovery
Disabled the users ability to delete their recovery

com.openexchange.guard-nodeleteprivate
Disables the users ability to delete their private PGP key. Can retract only!