Step 1 : Go in your Google settings and delete MailReach as a third party app.

The following video shows the process :



Go in your Google account settings
In the left menu, click on Security
Scroll down to Third-party apps with account access
Click on MailReach
Click again on MailReach
Click on Remove Access and confirm

Step 2 : Go back on MailReach and connect the Google account.

Go back on MailReach
Connect Account
Select Google Workspace / Gmail
Click on Sign in with Google

Well done, that should be fixed by now.

Updated on: 13/04/2022