If Messages on macOS 27 won’t send a message, it is usually caused by an inactive internet connection, an account sign-in error, or disabled text forwarding from your iPhone. Here’s what to do.
- Check internet connection: Make sure your Mac is connected to Wi-Fi or Ethernet and can load web pages.
- Verify Apple Account: Open Messages, choose Settings from the menu bar, click iMessage, and confirm you are signed in with the correct Apple Account.
- Check Text Forwarding (for SMS/green texts): On your iPhone, go to Settings > Apps > Messages > Text Message Forwarding and make sure your Mac is toggled on.
- Restart the Mac: Turn your Mac off and back on to clear temporary system glitches.
- Check Apple’s status: Visit the official Apple System Status page to see if there is an active outage for iMessage.
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