The latest is migrating Suggested Contacts from MDaemon into Office 365 / Microsoft Exchange.
This has subtlety. As is the case with Notes going from MDaemon into Exchange, we cannot place them directly in the folder "Suggested Contacts." On Suggested Contacts, see this link.
So we insert into the main Contacts folder (usually under an interface tag of "People" now) and give it the category "Suggested Contacts" to make them easy to find.
Viewing your Contacts as a List and looking at Categories you'll see them this way:
As the above link documented, "You can no longer add contacts to the Suggested Contacts folder."