I found the answer here: https://apple.stackexchange.com/questions/441313/no-mailbox-doesnt-exist-separator-woes-in-mail-app-dovecot-interaction/441341#441341
Apparently on Mac one needs to update the separator on a file, since it doesn’t seem that the Mail.app does it for itself. On the iPhone it happened automatically. Best, Francis _______________________________________________ dovecot mailing list -- dovecot@dovecot.org To unsubscribe send an email to dovecot-le...@dovecot.org