

POP isn’t sync; pop downloads all the messages locally and you tell the server what to do with them once they’re downloaded.
The result is that you have your messages on your device. But when you go to another device, it’s a different set of messages with different read status.
Unless something has changed, that’s how it worked last time I used POP and that’s why everyone used IMAP now that there’s multiple devices (phones, laptops) in play.
You’re right about self hosting email; it’s a pain.






My spinning rust is expensive. Man.