暗号化された個人メッセージの強制

[hiddenseal]

I believe it’s not possible at this moment although someone has asked for this during plugin development.

@sam

Would “Force every PM encrypted” option be on the cards?

Yes this is fine as an option. Basically would disallow PM to users that don’t have encryption enabled (but still allow admins to PM them unconditionally). We would need to think this through, but I don’t want to add this to the scope of the spec quite yet.

You may want to go to the marketplace for this feature