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If you only need a small mailbox in Microsoft Office 365 then you can use the Exchange Online Kiosk license. This kiosk license is designed for users that don’t have a dedicated computer and don’t require all the messaging features in Exchange.

With a 2GB mailbox is the Exchange Online Kiosk mailbox really designed for an occasional email. If users are going to receive more mail or want to use Teams then the Frontline worker plans are maybe a better option.

In this article, we are going to take a look at the limitations of the kiosk license and compare it with a couple of other options.

Exchange Online Kiosk Limitations

The Exchange Online Kiosk plan costs only $2 per user per month, making it the cheapest license in Office 365. But that comes with some limitations that you really need to keep in mind:

  • Only Outlook Online and Outlook on mobile devices (max screen size 10.1 inch)
  • Only 2Gb mailbox
  • No email archiving
  • No Microsoft Outlook for desktops
  • No Office 365 Groups

A common misconception is that you can’t access a shared mailbox with a kiosk plan. But according to the service description from Microsoft, there are no limitations to this. The only limitation is that you can’t add delegated access to the kiosk mailbox itself.

Other limitations can mostly be found in the security and legal features of Exchange Online, think as In-Place hold, Litigation Hold, Data Loss Prevention, and message encryption.

Also, it’s only an Exchange Online plan, so you don’t get any of the other Microsoft apps, like OneDrive storage, or Microsoft Teams access.

Comparing Exchange Online Kiosk

I have compared the Exchange Online Kiosk plan with Exchange Online Plan 1 and the Frontline-Worker plans to give you a better idea of what the limitations are of the kiosk plan.

I have listed all the Exchange Online differences between the plans and focussed on the important differences when it comes to Office 365. You can find all the details about the Exchange plans here in the service description from Microsoft.

Exchange DetailsExchange Online KioskExchange Online Plan 1Office 365 F3Office 365 E1Microsoft 365 F3
Exchange Mailbox size2Gb50Gb2Gb50Gb2Gb
Email archivingYes
Office 365 GroupsYesYes
Delegate accessYesYes
Inbox rulesYesYesYes
Public folder & Resource mailboxYesYes
Single item recoveryYesYes
Outlook add-ins and Outlook MAPIYesYes
Data loss prevention
In-Place Hold and Litigation Hold
Chat, Meetings, Social, and Calling
Microsoft TeamsYesYesYes
Live EventsYes
Microsoft ShiftsYesYesYes
Microsoft BookingsYes
OneDrive Storage (per user)2 GB1 TB2 GB
SharePointKiosk 3Plan 1 2Kiosk 3
1. 5 TB initial, contact Microsoft to increase. Less then 5 users, then only 1 TB per user
2. 1 TB Storage + 10Gb per user
3. 1 TB Storage
Project and task management
Power Automate, Power AppsYesYesYes
Exchange Online KioskExchange Online Plan 1Office 365 F3Office 365 E1Microsoft 365 F3
Endpoint and app management
Microsoft Endpoint ManagerYes
Mobile application managementYes
Remotely wipe company data from lost devices
Windows Autopilot
Set up and pre-configure new devices, getting them ready for productive use
Advanced threat protection
Windows Defender
Firewall, Anti-malware, Exploit Guard, Credential Guard
Identity and access managementExchange Online KioskExchange Online Plan 1Office 365 F3Office 365 E1Microsoft 365 F3
Azure Active Directory PremiumPlan 1
Conditional AccessYes
AD Sync for SSOYesYesYes
Windows Hello for BusinessYes
Microsoft Advanced Threat AnalyticsYes
Information Protection and Governance
Azure Information ProtectionPlan 1
Manual sensitivity labelsYes
eDiscovery and auditingExchange Online KioskExchange Online Plan 1Office 365 F3Office 365 E1Microsoft 365 F1
Content Search, Basic AuditYesYesYes

For only $2 more per month, you can give your users access to all the apps of Office 365, including Teams and OneDrive storage. Or if you only need mail, then for $4 per user they get a large mailbox, archiving, and single item recovery.

I have left the Microsoft 365 F1 plan out of the comparison because it doesn’t exclude Exchange Online.

To create this comparison I have used the Service Descriptions from Microsoft. There are some contradictions when it comes to Shared Mailbox access and inbox rules between the Service Description and the Exchange Licensing FAQ. I have asked Microsoft for clarification on this point and will update the article if necessary (Service descriptions should be leading though).

Wrapping Up

Keep in mind that you can always upgrade a license without losing any of the data. So you can perfectly start with the kiosk plan, and always upgrade if you need a large mailbox size or more Office 365 features (like OneDrive or Teams).

I have also compared all the major Microsoft Office 365 plan in one clear overview. If you have any questions, then just drop a comment below.