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MC794542 – Microsoft Defender for Office 365: Tenant Allow/Block List will support blocking top-level domains and subdomains

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check before: 2024-06-04

Product:

Defender, Defender for Office 365, Defender XDR, Exchange

Platform:

Online, Web, World tenant

Status:

Launched

Change type:

Admin impact, New feature, Updated message

Links:

389853

Details:

Summary:
Microsoft Defender for Office 365 will soon allow blocking of top-level domains and subdomains via the Tenant Allow/Block List, rolling out from late May to late June. This update applies to customers with Microsoft Exchange Online Protection and Microsoft Defender for Office 365 Plan 1 or Plan 2. No admin action is required before the rollout.

Details:
Updated May 31, 2024: We have updated the content below with links to additional information. Thank you for your patience.
This message applies to customers with Microsoft Exchange Online Protection and Microsoft Defender for Office 365 Plan 1 or Plan 2.
Soon, you will be able to block sender emails based on their top-level domain by creating block entries in the Tenant Allow/Block List in Microsoft Defender XDR.
This message is associated with Microsoft 365 Roadmap ID 389853.
[When this will happen:]
This change will start rolling out in late May 2024 and should be completed by late June 2024.

Change Category:
XXXXXXX ...

Scope:
XXXXXXX ...

Release Phase:
General Availability

Created:
2024-05-21

updated:
2024-06-01

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changes*

DatePropertyoldnew
2024-06-01MC Last Updated05/21/2024 01:09:102024-05-31T20:28:02Z
2024-06-01MC MessagesThis message applies to customers with Microsoft Exchange Online Protection and Microsoft Defender for Office 365 Plan 1 or Plan 2.
Soon, you will be able to block sender emails based on their top-level domain by creating block entries in the Tenant Allow/Block List in Microsoft Defender XDR.
This message is associated with Microsoft 365 Roadmap ID 389853.
[When this will happen:]
This change will start rolling out in late May and should be completed by late June.
Updated May 31, 2024: We have updated the content below with links to additional information. Thank you for your patience.
This message applies to customers with Microsoft Exchange Online Protection and Microsoft Defender for Office 365 Plan 1 or Plan 2.
Soon, you will be able to block sender emails based on their top-level domain by creating block entries in the Tenant Allow/Block List in Microsoft Defender XDR.
This message is associated with Microsoft 365 Roadmap ID 389853.
[When this will happen:]
This change will start rolling out in late May 2024 and should be completed by late June 2024.
2024-06-01MC MessageTagNamesNew feature, Admin impactUpdated message, New feature, Admin impact
2024-06-01MC prepareThis rollout will happen automatically by the specified dates with no admin action required before the rollout. Your existing Tenant Allow/Block List entries as it won't be affected.
Before rollout, we will update this post with revised documentation.
https://learn.microsoft.com/microsoft-365/security/office-365-security/tenant-allow-block-list-about
https://security.microsoft.com/tenantAllowBlockList
https://security.microsoft.com/tenantAllowBlockList?viewid=Sender
https://www.microsoft.com/microsoft-365/roadmap?rtc=1%26filters=&searchterms=389853
This rollout will happen automatically by the specified dates with no admin action required before the rollout. Your existing Tenant Allow/Block List entries as it won't be affected.
Additional information: Allow or block email using the Tenant Allow/Block List
https://learn.microsoft.com/defender-office-365/tenant-allow-block-list-email-spoof-configure?source=recommendations
https://learn.microsoft.com/microsoft-365/security/office-365-security/tenant-allow-block-list-about
https://security.microsoft.com/tenantAllowBlockList
https://security.microsoft.com/tenantAllowBlockList?viewid=Sender
https://www.microsoft.com/microsoft-365/roadmap?rtc=1%26filters=&searchterms=389853

*starting April 2022

Last updated 1 month ago

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