Mail App On Mac Wont Authenticate

Im running OS X El Capitan (Version 10.11.6) and I can't add additional accounts to my mail. Ive had the computer for over a year and all my accounts worked fine until about a 2 weeks ago, when my gmail accounts stopped receiving emails. My .mac e-mail was fine. So i deleted the accounts and then tried to re-add them thinking it would solve the problem however i cannot add them back.


I click on mail, add accounts, and then google. Which allows me to enter my e-mail and passwords just fine. But when it asks what apps i want to use with the account, i select mail and click done... and nothing happens. Then the Done button is grayed out but it hasn't been added.

Mar 17, 2020  Use this box to activate or deactivate Gmail on your Mac, including in the Mail app. Remove Gmail from your Mac, then add it again. When you remove Gmail, your Google emails, contacts, calendars, and notes are also removed from your Mac. This data is still stored on Google’s server and available when you log in to Google’s website.


any help?

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Several people are experiencing issues with Gmail (especially G Suite) email accounts in Mail on Mac. It seems that the Mail App is not working as expected for some Gmail users. More specifically, some Gmail users have said that after installing the macOS 10.14.4, and launching the Mail app, some Gmail users are asked to authenticate their email addresses. They get a notification saying:

See also: macOS Mojave Freezes or Stops Responding, Fix

“Enter the password for the account “(null)”: Google requires completing authentication in Safari.” This takes users to a Google web login form. However, shortly after authenticating, the Mail app asks for authentication once again, and again, as the process does not stick and goes into an endless loop.

Please note that we contacted Apple regarding this issue, and we were told that Apple is currently working on a fix.

In the meantime, you can try the following fixes:

1– Changing your Gmail account’s security settings may fix this problem. Open Google’s My Account site (https://myaccount.google.com) and click Security (On the left navigation panel) and then scroll down and find the “Less secure app access” section and turn this on (note that Google recommends this OFF).

See also: Mail App Keeps Crashing

Authenticating With The App Store

2- Set up your email account using IMAP. Please note that this process will delete your messages and will no longer available on your Mac. But do not worry, your mails will not be removed from Google’s servers, you can still access your mails via gmail.com web site. Here is how:

App

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  • Open the Mail App
  • Click Mail
  • Click Preferences
  • Click Accounts
  • Select your Gmail account
  • And click the (-) remove button
  • Now we will re-add your Gmail account
  • Before that, let us make sure that IMAP access is enable. If not, you can do that easily. To enable IMAP in Gmail, login into your Gmail web client (gmail.com) and then click Settings:
  • Click the Forwarding and POP/IMAP tab
  • Select Enable IMAP (IMAP access section)
  • And scroll down and click Save.
  • Now again in Mail App, choose Mail
  • Click Add Account
  • Select Google, then click Continue
  • Enter your email and click Next
  • Enter your password and click Next
  • And follow the instructions

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If this does not work, try the “Add Other Account” option and add smpt/imap info manually:

  • Incoming server: imap.gmail.com
  • Outgoing server: smtp.gmail.com

3- Open Safari and go to https://accounts.google.com/b/0/DisplayUnlockCaptcha and then enter your username and password, then enter the letters (captcha) then try again.

4-Please try the following:

  1. Quit Mail App.
  2. Open Keychain (Applications > Utilities or Spotlight Keychain)
  3. Search: google.oa
  4. Find the accounts that you are having trouble accessing, and delete Keychains
  5. Now go to https://accounts.google.com
  6. Sign in with your problematic account
  7. Click Security (left menu)
  8. Find the “Third-party apps with account access” section and click “manage third-party access”
  9. Click macOS and to revoke its access
  10. Then sign out (https://accounts.google.com)
  11. On your Mac, go to System Preferences > Internet accounts and re-authenticate your account
  12. And open your Mail and try again

5-Still having the problem? if so try this:

Mail App On Mac Wont Authenticated

  1. Download and install Charles (a proxy app): https://www.charlesproxy.com/latest-release/download.do
  2. Authorize automatic proxy, when asked
  3. In Charles go to the Help menu and then choose SSL Proxying > Install Charles Root Certificate
  4. Keychain Access will open. Find the “Charles Proxy…” (you may type Charles to search).
  5. Double click on it.
  6. Expand the Trust section and set to “Always Trust”.
  7. Close the window, enter your password when you are asked.
  8. In Charles, choose SSL Proxying Settings (Proxy menu).
  9. Add a new location with Host: people.googleapis.com
  10. Go to the Tools menu and then choose Rewrite and click Add.
  11. Add a new location with Host: people.googleapis.com.
  12. Add a new action:

Type: Body

Where: Response

Replace Value: {“names”:[{“metadata”:{“primary”:true},”displayName”:”Your Name”}],”emailAddresses”:[{“value”:”your@email”}]}

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  1. And now on your Mac, open System Settings and Internet Accounts and re-authorize your account.
  2. Now test to see if it is working, if your issue is resolved now, feel free to remove the Charles app.

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See also: macOS Mojave Draining Your Mac Battery Life? Here Is How To Fix

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