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mediumExchangeotherlearn_exchange · Aug 25, 2026

Troubleshoot outbound sending limits in Exchange Online - Microsoft Defender for Office 365

The article explains how to troubleshoot outbound sending limits in Exchange Online, which is part of Microsoft Defender for Office 365, focusing on monitoring usage and resolving sending issues for users and organizations.

Learn about outbound sending limits in Exchange Online, how to monitor usage, and resolve blocked sending for users and organizations.
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Security
threat_protection
Audience
adminsecurity_engineer
Environment
cloud
Classification confidence: 95%
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