We were tasked by a customer a year ago to build an in-product email import. All users had Chromebooks and accessed their O365 email within the web experience. Each user was required to individually authenticate and was then able to import emails from their Inbox/Sent Items/Archived/Deleted folders.  We also built a background sync process, that could automatically file future responses to that thread.

The framework allowed us to easily replicate with G-Suite for another client. 
Let's hope this survey is because Sage are finally going to invest some development resource in this area.

IMO this looks like a neat solution and actually is exactly what is needed in core product rather than trying to interface into Outlook. This way control is completely kept within Sage CRM and so can be managed much easier.

IMO this looks like a neat solution and actually is exactly what is needed in core product rather than trying to interface into Outlook. This way control is completely kept within Sage CRM and so can be managed much easier.