Features:

• Mailing UI.
• Meta data letter items.
• Voice messages.
• Auto detect online players.
• Prop spawn & effect for howler. ( if you want i can create howler prop model too like harry potter )
  Dependencies:
  ox_lib
  qb or qbx ( ox inv or qb-inv)

Showcase vide:

https://www.youtube.com/watch?v=n9YoKPkJPto