@ Nonnull public static EChange removeEmailDataTransportListener ( @ Nullable final IEmailDataTransportListener aEmailDataTransportListener ) { if ( aEmailDataTransportListener == null ) return EChange . UNCHANGED ; return s_aRWLock . writeLocked ( ( ) -> s_aEmailDataTransportListeners . removeObject ( aEmailDataTransportListener ) ) ; }
Remove an existing mail transport listener .