Try RMail PRE-Crime Services – If you experience issues with RPostOne for Outlook, click here. If you experience issues with RMail for other apps, browse through the list below and click on the link that best describes your issue. If it is not listed below, submit a Support ticket.
How to update your Chrome settings to minimize Gmail authentication requests
RMail app for Gmail button is missing or not working
How to remove the RMail app for Gmail extension from your Chrome browser