Apple Mail and IMAP - syncing folders and messages across systems
I have never been able to replicate folders and syncing using IMAP across systems.
iMac, iPhone, Macbook Air
I have read a few threads on this and found no clear answers so what is the best way to replicate all folders across all systems o that mail is synced across platforms?
All systems are using current software and all systems use Apple Mail.
Thanks for any advice.