Personally, i run the script on my Mail server (using the local mailboxes) and only the iPHone deals with the notes via IMAP

That said: i just tried it over IMAP, and it looks like Mail::Box::Manager may have a bug dealing with usernames that contain an "@" character. You should be able to URL escape the "@" symbol in the username, such that these properties...

• user: yourname@maildomain.tld
• pass: my$ecret
• imap server: imap.domain.tld
• port: 6789
• folder: Notes

...become this url: imap://yourname%40maildomain.tld:my%24ecret@imap.domain.tld:6789/Notes

But apparently Mail::Box::Manager can't deal with having a port and a password in that URI (even though that's what it's docs say to do). It fails with an error that "yourname" isn't a valid hostname

My guess is only the "URL parsing" logic in Mail::Box::Manager is broken, you could probably customize the script to make it take in distinct user/pass/server/port params for IMAP and construct the folder programaticly