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I use Gmail in the mail program, and for some reason, though the program is still downloading and accepting mail from another account, after I enter my password for gmail, I get an odd blank grey window as shown below.
I am using MacOS High Sierra 10.13.3 on a 13" early 2015 MacBook Pro, and there are no updates available at this time.
Enter in system library - Click on finder , take cursor on top menu bar > Go > Computer > Macintosh HD > Library
Drag and drop caches folder to the desktop .
Enter in user library - click on finder > Go > hold option key > Library .
Drag these two folders Caches , Cookies to the desktop .
Restart the Mac , then open safari for few minutes , open mail application and add the mail account .
Enter in system library - Click on finder , take cursor on top menu bar > Go > Computer > Macintosh HD > Library
Drag and drop caches folder to the desktop .
Enter in user library - click on finder > Go > hold option key > Library .
Drag these two folders Caches , Cookies to the desktop .
Restart the Mac , then open safari for few minutes , open mail application and add the mail account .
You're Welcome , open safari and browse and in system library and user library these folders will be created once again after sometime .
The Caches and Cookies folder that are on the desktop should be deleted into the trash , restart the Mac and empty the trash .
Try removing the Gmail account then add it back to Mail.
Did you meanwhile enable "special password for app" in GMail?
Thank you very much, that worked!
high sierra gmail password not accepted
