Alternate method to allow automatic sync for Gmail

follow these steps to whitelist the gmail automatic sync app from ienterprises login to g suite admin panel https //admin google com/ open security → api controls ( screenshot 1 ) click the link “manage third party app access” ( screenshot 2 ) check if “ienterprise mail sync” app is listed there a if yes, hover the mouse over it to see the “change access” link and trust the app ( screenshot 3) b if not listed, click “add app → oauth app name” and search for “ienterprise mail sync” and add the app and trust it as mentioned above ( screenshot 4 and 5 ) screenshots these steps require admin access, so you may need to contact your google workspace administrator to enable this for you