Mojave 10.14.4 fails to Authenticate Gmail account

Same here. Getting "Enter the password for the account (null)" when adding a G Suite account an a clear installation of a recent Mojave or getting a notification that account has been already added and showing the name of the regular gmail account that has been added and then removed before.

What's even more bizarre and made me really puzzled is, when I created a new user account (non admin), restarted, logged into the new account and tried adding a G Suite account (without setting up icloud or doing anything else) it tried to add that G Suite account, failed and displayed the name of my regular gmail account which was never entered on that brand new user account! How can it even be possible to get the name of my regular gmail address in that new account? For me looks like a potential security issue.

The workaround has already been mentioned: "Add Other Account" and add smpt/imap info manually. For that you might need either creating a password (when using 2-factor authentication) or allow "Less secure app access" in Google Account Security settings. Doesn't look as nice as a google account (i.e. "All mail" mailbox of a G Suite account isn't included in the global "All mail" mailbox, calendar or contacts isn't connected), but at least email works.

I'm extremely disappointed: first with getting serious unrecoverable hardware errors with my SSD after only like 16 months of usage of a macbook pro, and now getting such software errors which are hard to figure out unless using some Google Fu and landing on this helpful thread.

The direct link for the Charles rewrite is here from MacRumors user @Gannett. Follow the instructions carefully. Charles is a free download, runs for 30 days, and has a 30 minute timeout – some of us should buy or donate to thank him!

As best I can tell this process need only to be performed once per account to verify. Charles does not need to be running after that.

Also note that you need to repeat this process one by one for each G-Suite account by updating the email address in step 9 and then accessing the account in Apple Mail "Accounts". I had to select Contacts or Calendar and then click on another Account to trigger the Safari update window. 

Good luck ... YMMV

Hey all,

This happened with my university account too. The way I fixed it was to delete the account completely, retart, and then add it all over again. This should set it back up as a new account, completely ignoring any previous account.

Do this in system preferences and disable mail in this final setup section. Restart, then manually re-enable the mail. Hopefully this workaround might your accounts!

tl;dr Apple is aware of the G-Suite Gmail authentication problem and is working it but does not yet have a solution that works for everyone. 

I’ve had two phone sessions with a Mac Senior Advisor at Apple to help resolve my G-Suite Gmail authentication problem. Yesterday, after several attempts to resolve the issue that didn’t work, he went to the Engineering team to get advice on next steps and called me back today. Based on feedback from Engineering, he had me remove all of the keychain entries associated with my Gmail accounts then try authenticating my G-Suite Gmail account. Still didn’t work, same endless authentication loop. He confirmed that Apple has been getting many reports of this problem and is working it, but removing the Gmail keychain entries has worked for some people. He also confirmed most of the authentication issues are with G-Suite accounts, but not all. My guess is that some people who have a Gmail account and report the problem don’t know if it’s managed through G-Suite. The advisor said he would either get back to me with a proposed fix/work-around, if Engineering is able to come tip with one, or it will come out with the next Mojave update. So this may be awhile before it’s fixed. I will post any feedback I may get from the advisor.

No solution from Apple yet!.

The only solution is to delete and create the account on Apple Mail but without selecting Google by just doing it manually with the domains imap.gmail.com and smpt.gmail.com

Bad, very bad from Apple!!!!

A

As a couple others have mentioned, last night I went through the authentication process again for my GSuite account, and it all worked. I had made no changes to the account before or after the 10.14.4 upgrade, so based on everything that's been posted here sounds like Google had to make a change on their side to resolve this.

Sorry, the problem has NOT been "fixed".

My WORKAROUND was to delete and recreate the accounts (currently waiting for a few 100k mail items to synch...) but my accounts now display an alias (WRONG) email address (account name for Google) in the account details. I had to manually correct this email address in Mail preferences.

Yes it works... but not correctly

I have now got the Mail app from 10.14.3 and renamed it Mail Old. Copied in to the Application folder and launched it. It works just fine, no issues no lost gmail connections. So go for it.

It's Mail app version: 12.4 (3445.104.2).

I had this problem also and tried going through the Safari login process but that just looped as others have stated. I just tried going to inbox which showed the wavy line for offline and clicked on it. Entered my password and now everything is back to normal.

I've had this problem, none of my email accounts would connect at all. I also noticed that Safari had changed to using Yahoo as a search engine despite the preferences still being set to Google. Looking around I found that in the <Advanced Settings> in Safari preferences the SOOCKS proxy was turned on. As soon as I turned it off all my emails downloaded and my search engine seems to be back to Google.

The error doesn't occur if you setup a new user account. Works just fine with authenticating and setting up the same account. So there's something associated with the user library folder and authentication. A certificate... something. My next test is to delete all internet accounts, destroy and create a new keychain for the user. Go in to the ~Library/Mail folder and destroy all leftover folders from those deleted email accounts. Then I'll try again.

if that doesn't work... i'll just migrate all the user data to a new user minus the ~library folder.

Did not work for me. Adjusting GMail's security settings to allow "less secure" applications to access Gmail seems to have done the trick for me. This problem needs to be worked out between Apple and Gmail, however, since I don't want to keep the security setting at the "less secure" level.

Simply adjusting GMail's security settings to allow "less secure" applications to access Gmail seems to have done the trick for me. I did not need to delete and restore my account. This problem needs to be worked out between Apple and Gmail, however, since I don't want to keep the security setting at the "less secure" level.

I may have found a different solution to this issue in my Google Account itself.

I went to Privacy Checkup where you can manage a variety of things in Google, including your devices. I saw in Device management, one setting was switched to off. I switched it on and have not had any problems since. So far anyway :) Give it a try perhaps?

Thank you! I followed these exact instructions and so far it's working. I think re-starting after deleting the internet accounts might have cleared out the issue. For those who haven't tried it yet...here's the link that mulberrywriter provided: https://deciphertools.com/blog/2018-01-03-mail-smtp-offline/