Hello, I'm having a very similar problem, except I know I need an application specific password, but Google won't issue me one. I've been using 2-step verification for 3 years now, and only since my new iPhone 6 have I not been able to access my mail via the mail app.
How to Get Google Now on iPhone, and 8 Tips for Setup | PCMag Explore the settings. The settings look pretty drab at first glance. That's because you have to go to … How to Set Up Yahoo Mail on iPhone - Lifewire Nov 12, 2019 Can't add Gmail to Mail.app, iOS - Apple Community
Nov 12, 2019
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How can I setup my G Suite e-mail on my phone? - Help Jul 27, 2018 Set Up Your Phone or Tablet with UBmail Powered by Google Ensure your phone has a passcode enabled. If you don't have the Gmail App, download it for free from Google Play. Add your account. Android 4.0 – 4.4.4: Tap Settings > Add account > Google and touch Next.; Android 5.0+: Tap Settings > Accounts > Add account > Google. If you are using Android 4.0 – 4.4.4, touch Existing account > Menu > Browser sign-in.If you are using Android 5.0+, tap the Why Doesn't Gmail Work On My iPhone? Here's The Fix!