Forum Discussion
Exchange Online Kiosk and Shared Mailbox
Continuous learning.... https://technet.microsoft.com/en-us/library/exchange-online-limits.aspx shows that a Kiosk license is allowed to use a Shared Mailbox (no license) and have 50Gig quota.... Apologgies for mis-posting earlier - David
By the license terms, Kiosk users are not entitled to Delegate rights, so should not access a Shared Mailbox. If it works, then it doesnt change the policy and may become enforced at a later point.
Kiosk users can access an Office 365 Group, they get most of the features from Exchange and SharePoint, but miss Planner, OneDrive integration etc.
This is all in the service dscription you linked, it's easiest to read in the printer view at
https://technet.microsoft.com/en-us/library/exchange-online-service-description(d=printer).aspx