Restrict PMs to specific user groups

[Geat_Masta]

I would like the ability to put users in a restricted state where they can only talk to moderators; because punishments, like gagging for a month, do not work: the effect of a punishment is to create dislike of the authority.  I need the ability to talk to the people that have broken the rules to convince them that they are wrong, but because I can only find settings to block all PMs, this isn't possible.

[Genma]

Maybe this will help you: https://custom.simplemachines.org/mods/index.php?mod=2938

Tell us if it work for you.