Match My Email and editions of Salesforce
Match My Email is compatible with both Lightning Experience and Salesforce Classic, as well as Salesforce Mobile. Match My Email will also work for those with specialized apps such as Navatar, TechCanary, and more. MultiMatch will work with Essentials, Professional, Enterprise, and Unlimited editions of Salesforce.com.
Those grandfathered in Salesforce with Group Edition can still use Match My Email, but there are limitations. Contact contact firstname.lastname@example.org for more information.