Recover deleted messages on Mac
When you delete a message or conversation in the Messages app, it’s moved to the Recently Deleted folder. You can view and recover items in the Recently Deleted folder for up to 30 days. After 30 days, the messages are removed from all your devices. After 40 days, the messages are permanently deleted from iCloud.
You can restore messages you deleted for up to 30 days.
Go to the Messages app on your Mac.
Choose View > Recently Deleted.
If you don’t see Recently Deleted, you may not have deleted a conversation within the last 30 days.
Select the conversation in the sidebar.
Do one of the following:
Recover a recently deleted message or conversation: Click Recover.
Permanently delete a recently deleted message or conversation: Click Delete.
If you use Messages in iCloud, recovering a message or conversation on your Mac recovers it on all your devices where Messages in iCloud is on. See Keep your messages up to date with iCloud in the iCloud User Guide.
Recovering messages changes only your own Messages conversations, not those of your recipients.
If at least one participant isn’t using iMessage in a blocked conversation, and you recover that conversation, incoming messages won’t be automatically deleted.
Note: Any message that you delete from a conversation using Undo Send is permanently deleted. Audio messages that expire before being saved can’t be recovered. See Send an audio message on Mac.