Monterey, Mail, Import-Mailboxes Won't Die
Each time I launch mail, it adds an Import-Mailbox to "On My Mac" (the local account).
Each mailbox has the same content. These emails appear randomly selected, with dates from 2011 to 2021. I've not been able to locate the source.
I can delete the emails in these mailboxes, but not the mailboxes themselves. I can rename one of these mailboxes, but the renamed mailbox can't be deleted. At this writing, there are 32. I've given up closing mail.app...
Thoughts?