I brought this up and got some feedback in a previous post. It's all done now! The code is install and working (???) on Fate's Harvest, as my beta. I installed in City of Shadows (in development) to test my own install code, and it seems to be working. So, here it is!
https://github.com/skewskewskew/MUSHCode/blob/master/Unnecessary Messenger System <ums>
A quick note: There's a lot of notes. You need SQL and Cron. There's some staff-side settings. I did what I could to document but if you copy+paste into Muxify without reading, it probably won't work.
To repeat: It needs SQL. If you don't have SQL it won't work!
Help files are included! If you need help with anything just message me.
And why is it unnecessary? Just ask your game's coder if a thorough +txt suite is needed!