Open Mailbox With Raised Flag on Discord

What it signals here

server usage

Used in announcement channels to indicate that DMs have been sent to members or that important info is incoming.

reaction use

Used as a reaction to messages about communication, updates, or when someone is expecting news.

emote mapping

Servers sometimes use custom emotes inspired by 📬 for 'check your DMs' prompts.

gaming context

Used when game updates, patch notes, or event invites have been sent to players.

role meaning

Some servers assign 📬 to roles related to newsletter subscribers or announcement opt-ins.

See it elsewhere