closed mailbox with raised flag

📫 is a closed mailbox with raised flag emoji, commonly used to indicate mail delivery, new messages, or the need to check emails. In digital communication, it symbolizes an inbox, email notifications, or traditional postal services. This emoji is often employed to express anticipation for a reply, remind others to check messages, or serve as a visual marker for "sent" or "received." Its emotional tone is typically positive, expectant, or reminder-oriented, frequently seen in social media, chat apps, and email-related contexts.