This seems to have flagged as a macOS issue. It's not. It's a 'Using iPhone' issue.
This problem started relatively recently, last year.
My wife and I both have iPhone 6s's at the latest update 13.3.
We both have sky.com email that connects to Yahoo!.
My wife has the problem where she gets blank spaces in her inbox and new emails are not appearing in the inbox.
If she searches for the email by keyword it appears as being in the inbox.
If she cancels the search goes back to the inbox it is not there.
If she selects a blank space she get "No Mail"
If she logs into the Yahoo server via a browser, the new mail is there.
I am NOT having these problems on my iPhone so it is not dodgy wifi.
So far I have:-
- Deleted and set up her mail account on the iphone using the settings recommended from Sky's website. This means that when setting up the account I choose Other as opposed to Yahoo!
- Uninstalled the mail app and reinstalled it from the app store, although it actually downloads it from the iCloud.
- Reset her phone to factory and restored from a recent back up
- Played around with the Thread settings on the iPhone.
I don't want to set up the Sky account by selecting Yahoo! as I feel she will be bombarded with Yahoo popups
I am loath to reset her iPhone to factory set it up as new phone and not add any apps.
I don't see why she should go through the inconvenience.
Each time I carried out one of these actions, all the expected emails appeared and the spaces disappeared only for the problem to return after a few days.
Come on Apple!
Sort it out.
There are enough people having this issue to be able to debug it.
I am willing to take my wife's iPhone into a Local genius store for them to reproduce the problem and capture logs from her iPhone and I won't charge them!
This problem is not exclusive to Older models.
Apple, are you listening?
Perhaps if I put some rude words in this post it may be automatically flagged and they'll notice.