Outbox Tray on Facebook

What it signals here

reaction meaning

Rarely used as a reaction; mostly appears in comments to indicate sharing or forwarding content.

comment use

Boomers use it literally to mean 'I sent you a message' or 'forwarded to you 📤'.

boomer interpretation

Interpreted literally as email/outbox — used when confirming a digital send action like an RSVP or form submission.

group use

Group admins use it to announce shared documents or announcements being pushed out to members.

See it elsewhere