Easy Mail

EDIT: I highly encourage you use another mod called Fabric Mail - it has more features and is better maintained.

A little mod I created because I couldn't find one like it.
An easy mail system for your server.

• Send messages to players online and offline
• Operators can broadcast messages to everyone with /mailall

Usage:

• /mail - mail a player. If the whitelist is enabled then it will only send mail to the whitelisted players, and it will show all the available players as suggestions.
• /readmail - read all the mail send to you.
• /mailall - For operators only. Send a message to everyone whether they're online or offline. Any instances of @player in the message will be replaced with the recipient's name.
  For example, if an operator sends a broadcast saying "Hello @player!", then Joe will see "Hello Joe!" while Bob would see "Hello Bob!"