Automatic Tenant Allow/Block List expiration management is now available in Microsoft Defender for Office 365
Microsoft now automatically removes allow entries from the Tenant Allow/Block List once the system has learned from it. Alternatively, Microsoft extends the expiration time of the allow entries if the system hasn't learned yet. This behavior prevents legitimate email from going to junk or quarantine.
Terms in this update
This is in the weekly digest for week 39 · What changed this week? →
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Text by Microsoft, from Microsoft's documentation. Features and dates may change. Terms and the timeline are added by 365Fanatic.