How can I receive emails on my iPhone?

1. Restart your phone and see if the problem persists.
2. Using a web browser, go to the webmail of your email provider and make sure you have new emails
3. Make sure your email provider is not sending your emails to a junk folder.

If you can't receive email on your iPhone, iPad, or iPod touch

https://support.apple.com/en-us/HT211082