How do you set fetch mail in ios 11?

Since iOS 11, Apple has disabled scheduled fetch and notifications for favorited folders and sub folders for non-push mail accounts in the native mail app of iOS.

This fetch used to happen in iOS 10.3.3 without any problem.

Apple is also saying this problem in iOS 11.x is not widespread and only a few users are troubled by it hence will not resolve it.

Hello,

Go to Settings > Accounts & Passwords > Fetch New Data

I am having this problem too. Where do I complain?

Please log a report on the bugreport.apple.com

Also create a support request on the apple telephone support.

That way they will take notice.

Have you received any response from Apple regarding your problem?