A closed mailbox with the flag down. It means no new mail, nothing waiting, or a quiet inbox.
Rare in chat. People use it to say there are no messages or replies yet, or that the mail has already been collected. It forms a set with ๐ซ, ๐ฌ and ๐ญ, which show the other mailbox states.
Facts
Closed mailbox with lowered flag ๐ช is an emoji in the objects category, under mail. It is one of the early emoji from Japanese phones, standardized in Unicode 6.0 (2010). On GitHub, Slack and other apps you can type it as :mailbox_closed: or :closed_mailbox_with_lowered_flag:. People also look for it with words like โclosedโ, โflagโ, โloweredโ, or โmailโ.
Timeline
2010Added to the emoji standard (Unicode 6.0)
Design history
Google (Noto)
2015
2017
2021
Twemoji (X, Discord)
2014
2016
Google Noto Emoji images: Apache 2.0. Twemoji graphics by X Corp and contributors: CC-BY 4.0.