I have an iPhone 8 with the latest OS. The other day, the cable outside my house that connects me to the cable company broke, and they came to fix it. The internet is working right, again, except for emails on my phone. The messages load and read on my Mac, but nothing is sent to the phone. I use the native Apple app, and it has always worked fine. The phone is connected to my network and behaving normally, otherwise.
"Oh dear! What can the matter be?"