I have an old iPhone 5 with iOS 10. When trying to login to a Gmail account in the Settings app in order to use the Mail app I get this from Google:

Error 403: disallowed_useragent You can’t sign in from this screen because this app doesn’t comply with Google’s secure browsers policy. If this app has a website, you can open a web browser and try signing in from there.

It basically means that Google has (correctly) classified the user agent as an embedded web view, which goes against their policy (reasonable, I think).

The question now is: can the Mail app on iOS 10 still be used with Gmail somehow?

I simply enjoy keeping devices alive and I enjoy using iOS Mail if possible.

1 Answer 1


Have you tried signing in with an App Password?

  1. Go to your Google Account > Manage your Google Account.
  2. Select Security.
  3. Under "Signing in to Google," select App Passwords.

From google support answer:


  • Hmm, interesting. No, I'll have to look into that!
    – Andreas
    May 22, 2022 at 1:08
  • 1
    Hello, @Nilesh. This is considered a "link-only" answer. It would be helpful for future visitors to this question if you would edit in a summary of that page. Links can become broken or outdated so a summary would still provide the necessary information.
    – agarza
    May 22, 2022 at 2:51
  • How does using an App Password overcome a "disallowed_useragent" problem?
    – nohillside
    Jan 18, 2023 at 15:50
  • Last time I checked, those clients didn't support two factor authentication so you had to use an app password.
    – Nilesh
    Jan 19, 2023 at 16:59

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