How Do I Recover Deleted Email Folders And Contents In Mail From Time Machine on Ventura 13.5 OS

Importing does not wipe out existing folders. Imported emails go into a new Import folder. If an Import folder already exists, another new folder called Import-1 is created, and so forth.

This is from Apple Mail Help:

Import mailboxes

1. In the Mail app on your Mac, choose File > Import Mailboxes.
2. Select a source in the list, read the information that appears below the list, then click Continue.

• • If you’re importing a mailbox exported from Mail or a folder in the ~/Library/Mail/ folder on another Mac, select Apple Mail. To get to the Mail folder on a Mac, click the desktop to make sure you’re in the Finder, press and hold the Option key, choose Go > Library, then select the Mail folder.
  • If you’re importing messages from a Windows or UNIX computer, select “Files in mbox format,” then locate the folder containing the files.

1. Reorganize the imported messages, if you like.
2. The messages are in a new mailbox called Import in the Mail sidebar. You can drag folders and messages from the Import mailbox to new or existing mailboxes, then delete the Import mailbox.

You can try rebuilding the Mailbox. Mail uses a database to show what is in the folders. It has to scan the folder or re-download the messages to update the database.

Another option would be to import the mbox folder.

I don’t know which is the best choice as I haven’t tried.

Glad that worked! Now that you have the recovered emails in the Import folder, you can move them into the named folders where you wanted them to be.