For some reason my iPhone suddenly stopped updating my mail. When I check it, it says something along the lines of can't connect to server, even though I can access the internet through Safari and I am on WiFi. It will load old emails but it just will not load any new ones or let me send emails. I have already tried restarting my phone. This might have started happening when I updated to the latest software version but I am not entirely sure.
Read more: Why won't my iPhone update mail?