I changed my Google password for security reasons but when I try to update my email account password in Mail on my iMac, I get an Error 400:invalid_request message saying Mail (my version is 11.5) does not comply with Google's OAuth 2.0 policy - so won't let me update my password and take my Mail account online.
Any advice on how to get round this?
My iMac is an old 2009 version, using High Sierra, 10.13.6
thanks
iMac, macOS 10.12
This might be fine if your iMac is a within a certain age but with a mid-2010 or 2011 iMac, running High Sierra 10.13.6 is as high as Apple will allow the OS to go.
I get exactly the same problem as reported above - all my Gmail accounts within the Mail app are suddenly non-operational because I changed the password as part of a security review (prompted by Google) and from this point I have been unable to receive mail to my Gmail account using the Mail app on my iMac. The password field does not appear on the Details screen within the Internet Accounts part of Systems Preferences - I get the following:
You can't sign in to this app because it doesn't comply with Google's OAuth 2.0 policy for keeping apps secure.
You can let the app developer know that this app doesn't comply with one or more Google validation rules.
So I am letting the app developer know so that Mail can be updated to cope with it...and asking for this upgrade will be available to users of Mail on High Sierra. Currently I am running Mail v 11.5 (2018).
The only workaround I can use on the iMac at the moment is webmail.
I have two gmail accounts. One still working the other is not
since changing password. I am on macbook pro ios 10.12.6 and no upgrades allowed.
👍
Any of these links help?
Sierra is listed on this page...
How to download and install macOS - Apple Support
And here...
I have macos sierra 10.12.6. can't seem to update to anything else and have same issue with gmail all of the sudden not coming in Mail. ironically, it happened the minute i bought an updated iphone.
how did you do that could you please explain?? Thanks
How to fix my google account on my Mac
I did everything here and I received this error...
I checked to make sure everything was spelled correctly. Anymore help you can give is greatly appreciated.
Thank you!
[Edited by Moderator]
<Responded in error>
thank you so much for your help! I'm right there with ya, really don't want to buy another iMac, this one's fine, uh well, kinda, except for technology changing overnite.....
amazing, thank you this worked on 2010 imac :)
Mail and Google's OAuth 2.0 policy
