Mail 'Recovered Messages' folders when deleting from Notifications

Hey there machineage,

While this sounds like something for which you may need to contact Apple Support for further help, we'd like to first rule out what we can here in Apple Support Communities:

1. We see you have macOS 12.6, but the latest version is macOS 12.6.1. You can verify this by clicking on the Apple logo at the top left corner of the screen, then on ‘About This Mac’. This link will show how to first back up, then Update macOS on Mac. While the latest version is macOS 13.0, it's not necessary at this time to upgrade to that version.
2. Sometimes unexpected behavior can be resolved with a restart. Check out the section 'Restart' here: Log out, sleep, wake, restart, or shut down your Mac
3. When did this first start?

Cheers!

Hello machineage,

Check out the information on this page: If messages are in a Recovered Messages mailbox in Mail on Mac - Apple Support.

If an email account in the Mail app on your Mac has a Recovered Messages Mailbox in the Mail sidebar, try these suggestions.

- If Mail moved messages to the Recovered Messages mailbox when it updated your email library after a macOS upgrade, drag the messages into another mailbox.

- If messages from a specific mailbox are repeatedly moved to the Recovered Messages mailbox, rebuild that specific mailbox.

You may need to rebuild each of the mailboxes.

1. In the Mail app on your Mac, select a mailbox in the sidebar.

2. Choose Mailbox > Rebuild.

When you rebuild mailboxes for IMAP or Exchange accounts, messages and attachments stored on your Mac are discarded, and then downloaded again from the mail server to your Mac. Your mailbox appears empty until the download is complete.

Kind regards!

machineage, Thanks for providing us with those details. In this case, we recommend that you contact Apple Support directly so that they can work with you to find a solution.

Contact - Official Apple Support Thank you for participating in the Apple Support Communities. Cheers!