[Dovecot] Install from repository

data/Dockerfiles/dovecot/syslog-ng.conf

@@ -31,10 +31,10 @@ destination d_redis_f2b_channel {
   );
 };
 filter f_mail { facility(mail); };
-filter f_not_watchdog { not message("172\.22\.1\.248"); };
+#filter f_not_watchdog { not message("172\.22\.1\.248"); };
 log {
   source(s_src);
-  filter(f_not_watchdog);
+#  filter(f_not_watchdog);
   destination(d_stdout);
   filter(f_mail);
   destination(d_redis_ui_log);