Cannot restore Apple Mail from Time Machine backup
After making a Time Machine backup, I erased my MacBook Pro hard drive and reinstalled macOS Catalina. I was able to restore everything except for my Apple Mail from the Time Machine backup (my Mail, at 40gb, was too large to sync using my iCloud).
Here’s what I tried:
- Apple’s “Restore your Mac from a backup” (https://support.apple.com/en-us/HT203981) and simply copying the ~/Library/Mail directory over to the Macintosh HD. When I open Apple Mail there is nothing there.
- I had previously used the “Import Mailboxes” procedure successfully when I was running High Sierra, but with Catalina in trying to import Mail from the ~/Library/Mail/V7 backup, each individual email message imported has no message content. Each is identified with (No Sender) (No Subject). (See https://support.apple.com/guide/mail/import-or-export-mailboxes-mlhlp1030/mac)
- I read that that it may be a permissions problem because Time Machine appends hidden permissions settings called ACLs (access control lists) to files. So I tried a chmod -R -N ~/Library/Mail command to strip the ACLs (as described here https://www.macissues.com/2014/12/07/how-to-manually-restore-your-mail-folder-from-time-machine/) but got an operation not permitted error.
- I followed the Restore procedure described at “Restore items backed up with Time Machine on Mac” (https://support.apple.com/guide/mac-help/restore-files-mh11422/mac). I tried the Time Machine “restore” button to restore the ~/Library/Mail directory, but the Restore button is grayed out.
- I gave Terminal full disk access and then tried the command: sudo tmutil inheritbackup as described here (https://www.macworld.com/article/3261146/how-to-make-sure-time-machine-works-when-you-upgrade-your-hard-drive.html, but it produces an Invalid Target as described here (https://apple.stackexchange.com/questions/375894/inheriting-time-machine-backup-invalid-target). The “solution” described there is over my level of comprehension.
I must be missing something simple. Restoring Apple mail must be a common occurrence and something relatively simple to undertake.
Does anyone have experience restoring Mail with Catalina who can point me in the right direction? Thank you in advance!
MacBook Pro 15″, OS X 10.11