I am not receiving email on my iPhone or ipad

Check Mail Fetch and Notification settings

If Push isn't available as a setting, your account will default to Fetch. These settings affect how your device receives email. ... Go to Settings > Mail, then tap Accounts. Tap Fetch New Data.

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

If you have an iPhone and another iOS device, like an iPad, your iMessage settings might be set to receive and start messages from your Apple ID instead of your phone number. To check if your phone number is set to send and receive messages, go to Settings > Messages, and tap Send & Receive.

If you can't send or receive messages on your iPhone, iPad, or ...