Bukkit

+Updated for 1.8.1
+Complete rewrite
+Craftable mailboxes using playerheads
+2 textures for the mailboxes
+Stationary and packages with attachments
+Permissions support
-Took away all commands but the basic /mail used for instructions

Due to Bukkit limitations on player heads, the server must run a command to spawn in the specific head snapshots needs and will log on the console.