My iPhone won't vibrate when I get an email anymore?

So, my iPhone stopped vibrating when I get an email. I tried so many things to fix this. I tried checking the settings, those looked fine. I tried redownloading the app, nothing. Signing out and signing back in. Nothing. It'll only update and vibrate when I open the app. It's getting frustrating because most of my emails need to be reponded to immediately. How can I fix this?

Go to Settings>Mail>Accounts>Fetch New Data and make sure that it is set to Push. If it is only vibrating when you open the app then this is because you have the Fetch frequency set to Manually instead of a set time. To save data, I would recommend the 30 minute interval instead of the 15 minute interval, but it's completely up to you.

Open settings > sounds > new mail > vibration setting will be at the top. Select a vibration pattern.

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