Optional. Every text gets delivered without this. Turn it on if you'd like iPhone contacts to get blue iMessages and Android contacts to get green texts, the same way Messages does it.
Click the Text Your List icon in the menu bar at the top of your screen and choose Quit. Your Mac only applies this setting when the app starts.
Open the Apple menu, then System Settings > Privacy & Security > Full Disk Access.
Go to Account Settings. Under Blue bubbles for iPhone contacts it should say On.
Click any item to expand.
Your Mac already knows which of your contacts use iMessage. It keeps that in your Messages history. Apple keeps that history private, and Full Disk Access is the only way to let an app look at it. Text Your List checks it on your Mac to pick blue or green for each person.
Your messages and message history never leave your Mac. Apple doesn't let apps ask for this permission themselves, which is why it's a manual step.
This fixes the most common cause: an older copy of the app was added to the list and the switch doesn't apply to the new one. Make sure you open Text Your List from Applications, not from the downloaded installer window.
Turn off the switch next to Text Your List in Full Disk Access. Everyone will get regular green texts again, and nothing else changes.
Email [email protected] and we'll sort it out with you.