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Microsoft Enables Exchange Online Auto-Archiving by Default

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1 unique sources, 1 articles

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Microsoft has enabled threshold-based auto-archiving by default in Exchange Online to mitigate email flow issues caused by mailboxes filling up faster than expected. This feature moves the oldest items in primary mailboxes to archive mailboxes when usage approaches 90% of the quota, ensuring continuous mailbox health monitoring. The update is rolling out this month for public clouds and in November for government clouds. Users can tag important items with the 'Never Move to Archive' flag to prevent them from being archived. The auto-archiving feature addresses the limitations of time-based archive policies, which are ineffective for high volumes of incoming emails with large attachments. By continuously monitoring mailbox size and automatically archiving the oldest items, Microsoft aims to prevent mail flow disruptions and ensure real-time mailbox health across organizations.

Timeline

  1. 08.10.2025 20:49 1 articles · 9h ago

    Microsoft Enables Exchange Online Auto-Archiving by Default

    Microsoft has enabled threshold-based auto-archiving by default in Exchange Online to mitigate email flow issues caused by mailboxes filling up faster than expected. This feature moves the oldest items in primary mailboxes to archive mailboxes when usage approaches 90% of the quota, ensuring continuous mailbox health monitoring. The update is rolling out this month for public clouds and in November for government clouds. Users can tag important items with the 'Never Move to Archive' flag to prevent them from being archived.

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Information Snippets

  • Microsoft is enabling threshold-based auto-archiving by default in Exchange Online.

    First reported: 08.10.2025 20:49
    1 source, 1 article
    Show sources

  • The auto-archiving feature moves the oldest items in primary mailboxes to archive mailboxes when usage approaches 90% of the quota.

    First reported: 08.10.2025 20:49
    1 source, 1 article
    Show sources

  • The update is rolling out this month for all public clouds and is scheduled for November for government clouds.

    First reported: 08.10.2025 20:49
    1 source, 1 article
    Show sources

  • Users can tag important items with the 'Never Move to Archive' flag to prevent them from being archived.

    First reported: 08.10.2025 20:49
    1 source, 1 article
    Show sources

  • The Managed Folder Assistant continuously monitors mailbox size and automatically archives the oldest items first.

    First reported: 08.10.2025 20:49
    1 source, 1 article
    Show sources

  • The auto-archiving feature addresses the limitations of time-based archive policies, which are ineffective for high volumes of incoming emails with large attachments.

    First reported: 08.10.2025 20:49
    1 source, 1 article
    Show sources