How Do I PM All My Users

[rawnet]

Hello,

I'd like the ability to send Private Messages to all my members at once (rather than emails). Doesn't seem to be an option to do this however - how should I go about this? Any ideas or hacks that anyone has done?

Would be better than emailing users as they would then come back to the site to read the PM. Should be able to allow admins to PM everybody even if they have disabled PM notification via email.

Ross