notifications of messages stopped working after upgrade to 11.2.6

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Thanks and have a wonderful day.

Since my update to 11.2.6 2 days ago, I no longer get email notifications on the home screen when screen is sleeping or not. The email icon count does not change although I know there are new emails. I can only get new mail when I go to the app. Texts are OK.

I have checked, changed and changed again all the settings in notifications and in the push, fetch, how often to fetch settings. Reboot phone, reset network settings to no help. I may try restore but only if there is no other theory out there.

I see that it says now that Automatic fetch only works when on wifi and plugged in. Is this something new? I admit, I never looked or changed any of this stuff on my phone, or any previous phone, until today. My phone is not normally plugged in. I do know that emails were instant though, and not on a schedule, so I don't understand that part.

Verizon and AOL. (don't snicker, had this since email came about.)