Question marked as Top-ranking reply User profile for user: azaksalmarzur28 azaksalmarzur28 User level: Level 4 1,224 points Dec 10, 2025 11:50 PM in response to Tahoe Donna “Imported” and “On My Mac” messages are local-only archives, often created after macOS upgrades or restores.You can safely delete them from the Messages sidebar or from ~/Library/Messages/.This does not remove any messages from your iPhone or iCloud. Reply Link