Thank you very much for posting this. Looking at the diffs across configurations, I tried all these options, without success:
* service dns_client block * turn off global separator variable * auth_mechanisms login plain gssapi cram-md5 My dovecot configuration is the common denominator of multiple Notes.app clients not working, so I’m pretty sure I’ve configured it in a way that macOS Notes.app doesn’t like. The only other difference I see is the ldap passwd and userdb driver. Looks like I’ll have to wait for some inspiration and free time to break out wireshark to dig further. Thanks again, Steve