After the update, the plugin runs without errors. Now it gets 5 stars too.
Keep it up.

Amazing plugin, works perfectly, amazing dev, happy to take ideas and fixes bugs fast!

When I try to use commands, I get an error saying that an internal error occurred when attempting to use this command

Very good plugin, only suggestion would be to show who sent the mail in the items lore in /postbox-open menu

You can also introduce a little more detail, such as what commands are there, support console not