Messages
Messages let you talk privately with other managers: to open talks over a player, arrange a friendly, or just say well played. Your messages are under Manager > Messages, and the envelope at the top of every page shows how many are unread.
Sending a message
Open the manager's profile, from his name anywhere in the game, and choose Send message. Give it a subject of 2 to 50 characters and write your message, up to 4,000 characters.
To answer a message, open it and choose reply.
Your inbox and sent items
Inbox lists your latest 50 messages, unread ones first. Opening a message marks it as read. Tick messages and use the delete button to clear them out, or select them all at once.
Sent Items shows the messages you have sent in the last 14 days.
Not every message is from another manager: the game, the Tribunal and the admin team also write to you here, for example about a transfer the FA has looked at or a bug you reported.
Blocking a manager
If a manager is bothering you, add him to your pest list: choose Mark as pest on his profile. On your Pest List, under the Manager menu, you can then block his messages, his transfer bids, or both. A blocked manager cannot send you messages. You can unblock him at any time.
If a manager is abusive, report it to the Tribunal as well: see the Code of Conduct.