Exchange Online (Plan 1)
Part of Exchange Mailbox — Plan 1
Exchange Mailbox Included in 28 licenses
Microsoft 365 Business Basic SMB_BUSINESS_ESSENTIALS
Microsoft 365 Business Basic The entry-level Microsoft 365 plan for small businesses — web and mobile Office apps, Exchange email, Teams, and 1TB of cloud storage per user; capped at 300 seats. O365_BUSINESS_ESSENTIALS
Microsoft 365 Business Standard Adds desktop Office apps (Word, Excel, PowerPoint, Outlook) to Business Basic's web/mobile-only lineup — the mid-tier small-business plan; capped at 300 seats.
EEA (no Teams) Office_365_w/o_Teams_Bundle_Business_Standard
EEA (no Teams) Microsoft_365_Business_Standard_EEA_(no_Teams)
Microsoft 365 Business Premium Business Standard plus a slice of enterprise security — Intune device management, Entra ID P1, and Defender for Business — for small businesses that need managed devices; capped at 300 seats.
Office 365 E1 The entry-level Office 365 Enterprise plan — web and mobile Office apps, Exchange, SharePoint, and Teams; no desktop Office apps and no per-SKU seat cap.
Office 365 E2 retired
