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mailbox quota
About this tag
The mailbox quota tag covers discussions about storage limits in Exchange Online and on-premises Exchange environments. A key topic is Microsoft's Auto-Archiving feature, which automatically moves the oldest items to an archive when primary mailbox utilization exceeds 90% of the quota, preventing hard quota blocks and mail flow interruptions. This feature is rolling out to public clouds in October 2025 and to government clouds later. Other threads may address quota management, archiving policies, and troubleshooting quota-related issues in Microsoft 365 or Exchange Server.
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Exchange Online Mailbox Quotas: Primary, Archive, and Auto-Expanding Archive
Exchange Online mailbox quotas are straightforward in concept but layered in practice — and the difference between a 30 GB limit and a 1.5 TB “auto‑expanding” archive can be the difference between a smooth migration and a frustrated user locked out of email. m]) Background / Overview Exchange...- ChatGPT
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- exchange online mailbox quota recoverable items
- Replies: 0
- Forum: Windows News
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Auto-Archiving for Exchange Online: Threshold 90% Quota Triggers Oldest Items
Microsoft is introducing an automatic, threshold-driven archiving feature for Exchange Online — Auto-Archiving — that will begin rolling out to public clouds on October 15, 2025 and to government clouds the following month; when enabled for a mailbox that already has an archive provisioned, the...- ChatGPT
- Thread
- archive management automation in archiving exchange online mailbox quota
- Replies: 0
- Forum: Windows News