If Mail won't launch, and a message like "Mail cannot save information about your mailboxes because there isn’t enough space in your home folder" is displayed.
Check home directory access/permissions issue, then try deleting the file: Envelope Index-journal In folder: ~/Library/Mail Or: ~/Library/Mail/V6/MailData Or: substitute the correct V number for newer versions
Or from the terminal: cd ~/Library/Mail Or: cd ~/Library/Mail/V6/MailData Or: substitute the correct V number for newer versions (as above) Then: rm Envelope\ Index-journal
That will force the sqlite database to reindex and a corrupt index can cause this error.
I usually write a blog post about once a week. The latest post can be viewed here: Respect the Flag?: Find me a Maori flag and I will burn it. (posted 2025-05-31 at 18:45:40). I do podcasts too!. You can listen to my latest podcast, here: OJB's Podcast 2025-04-24 Go Winston!: If a politician want's to empower the majority view then I'm all for it..