How to Disable External Email Forwarding in Microsoft 365 | Osmicro Tech Check

Опубликовано: 15 Май 2026
на канале: Osmicro
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Is external email forwarding enabled in your Microsoft 365 tenant?

Automatic forwarding rules can silently send company emails to external addresses, creating a serious data exfiltration risk.

In this Osmicro Tech Check, I show you where external forwarding is controlled in Microsoft 365 and how to disable it at the tenant level using the outbound spam policy.

In this video you’ll learn:

• Where automatic forwarding is configured
• Why mailbox settings aren’t enough
• How to disable external forwarding tenant-wide
• Why this setting matters for security

This is a simple 2–3 minute check that can significantly reduce data leakage risk.

Learn more about securing Microsoft 365:
https://osmicro.com.au