The main reasons why iMessages may not be sending include:
- No internet connection or poor network signal. iMessage requires WiFi or cellular data to send messages. If there is no service, or if Airplane Mode is on, messages won't send.
- iMessage might be turned off or not properly activated in your phone settings.
- The recipient's phone may be off, in Airplane Mode, or without a connection, causing delayed delivery.
- Temporary glitches with the Messages app that can be fixed by restarting the iPhone or the app.
- Misconfiguration of iMessage settings such as Send & Receive addresses.
- iMessage servers may be down, though this is rare.
- Software or carrier setting issues that may require updates or resetting network settings.
Common fixes include checking your network connection, ensuring iMessage is enabled in Settings > Messages, restarting your phone, retrying to send the message, or sending as SMS if necessary. If the problem persists, signing out and back into your Apple ID or contacting Apple support may help.
