Envelope With Arrow on Telegram

What it signals here

sticker mapping

Maps to 'send message' sticker packs; often paired with paper plane stickers in communication-themed sets.

channel use

Channel admins append it to posts inviting subscribers to reply to a linked bot or admin account.

group meaning

Used in group chats to signal that a private message has been or should be sent — 'check your DMs 📩'

bot context

Bots use the emoji in automated messages to represent outgoing notifications or alerts delivered to users.

See it elsewhere