Sent emails not sending, and disappearing from Mail
I'm on an iPhone 13, using iOS 16. For the past couple of weeks, I've been sending emails and, randomly, some will just vanish. I get the "swoosh" noise, but they don't send. They don't go to an Outbox. They just VANISH.
I saw a few old threads about this, on iPhone 4s and 5s. So this is obviously a thing. Anyone know a solution?
iPhone 13 mini, iOS 16