Outlook: Support for Auto-Expanding Archives

🚨 The Signal: Outlook now supports auto-expanding archives, increasing mailbox archive limits beyond 100 GB. This change impacts data retention, eDiscovery, and compliance, requiring review of existing information governance policies.

The Impact

Security and compliance teams are affected by increased data volume, posing risks to eDiscovery and data lifecycle management.

• Security Teams: Increased data volume complicates eDiscovery and data spillage investigations.
• Compliance Teams: Existing retention policies may not adequately cover the expanded archive scope.
• Legal Teams: Higher data volumes can increase eDiscovery costs and complexity.
• IT Admins: Need to understand expanded storage implications for backup and recovery strategies.

The Action

1. Review existing Microsoft Purview data retention policies to ensure they align with expanded archive capabilities.
2. Update eDiscovery search scopes and hold policies to account for potentially larger data sets.
3. Communicate expanded archive capabilities to legal and compliance stakeholders for policy re-evaluation.
4. Assess current backup and recovery strategies for Exchange Online to ensure they scale with increased archive sizes.

Domain: Purview · Impact: medium · Workload: Microsoft Purview