so the mail boxes names "post box" it says you can send mail to others on the list (left side of the menu that pops up when you open it) and the list would be people who have the box placed down.. me and two other poeple have them placed down and their names dont pop up.. is this an issue or just being dumb? Thank you!

What version of the mod are you using?

As I'm using the same modpack, we're on minecraft 1.20.1, using 1.0.14 and... forge 47.2.20.

its 1.20.1 and what version of mighty mail we're using, which is... 1.0.14