Exchange Online Plan 1 vs Office 365 E1/E3 - Microsoft Community
https://answers.microsoft.com/en-us/msoffice/forum/all/exchange-online-plan-1-vs-office-365-e1e3/41dc69b9-aaa1-4bb7-9b7f-abc29fbc9220
WebFeb 9, 2018 · In Office365 they call it plans. Like Kiosk Plan, Plan 1, Plan 2. For mail products, we have - Exchange Online Kiosk (2GB Mailbox, Webmail only) - Exchange Online Plan 1 (50GB Mailbox, 50GB Online Archive, Outlook-Web, MS-Outlook compatible) - Exchange Online Plan 2 (50GB Mailbox, Unlimited Online Archive, Outlook-Web, MS …
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