WIP: Email verification

server/server_manager.go

@@ -15,6 +15,9 @@ func (s *Server) execManager() {
 	s.pruneAttachments()
 	s.pruneMessages()
 	s.pruneAndNotifyWebPushSubscriptions()
+	if s.mailSender != nil {
+		s.mailSender.ExpireVerificationCodes()
+	}
 
 	// Message count
 	messagesCached, err := s.messageCache.MessagesCount()