As an admin I see many errors about already registered mail rules in different mail files.
21.04.2023 13:39:45 Error registering mail rule 3 for database mail\tuser.nsf: Monitor has already been registered, no action taken.
21.04.2023 13:39:45 Error registering mail rule 10 for database mail\tuser.nsf: Monitor has already been registered, no action taken.
21.04.2023 13:39:45 Error registering mail rule 14 for database mail\tuser.nsf: Monitor has already been registered, no action taken.
21.04.2023 13:39:45 Error registering mail rule 16 for database mail\tuser.nsf: Monitor has already been registered, no action taken.
As described in this technote Domino Server console shows entry as "Error registering mail rule # for database dbname.nsf: Monitor has already been registered, no action taken" this is an informational message and can be avoided by removing or disabling the identical mail rules.
I would like to have a feature in the Notes client which checks and informs the user before creation of an already registered mail rule.