Outlook Mailbox Size Limit: How Much Storage You Get (2026)
Outlook.com free mailboxes hold 15 GB; Microsoft 365 gives 100 GB; Exchange Online business plans are 50-100 GB. Full storage limits and how to free up space.
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Outlook.com free mailboxes hold 15 GB; Microsoft 365 gives 100 GB; Exchange Online business plans are 50-100 GB. Full storage limits and how to free up space.
Exchange Online allows 10,000 recipients/day and 500 (up to 1,000) per message. Outlook.com subscribers get 5,000/day. How the limits work.