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MC678057 – (Updated) Microsoft Defender for Office 365 Tenant Allow Block List limits (archived)

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check before: 2023-10-13

Product:

Defender, Defender for Office 365, Exchange, Microsoft 365 Defender

Platform:

Online, US Instances, Web, World tenant

Status:

Launched

Change type:

Admin impact, New feature, Updated message

Links:

98185

Details:

Updated October 20, 2023: We have updated the rollout timeline below. Thank you for your patience.
Soon, customers with Microsoft Defender for Office 365 plan 2 can create 10,000 block entries and 5,000 allow entries (via admin submissions) in the Tenant Allow Block List for each category (Domains & addresses, Files, and URLs). Customers with Microsoft Defender for Office 365 plan 1 can create 1,000 block entries and 1,000 allow entries (via admin submissions) in the Tenant Allow Block List for each category. Customers with Exchange Online Protection will remain at 500 block entries and 500 allow entries (via admin submissions) in Tenant Allow Block List for each category. The limit for spoofed senders will remain at 1,024 total entries (block entries and allow entries combined) for all service plans.

This message is associated with Microsoft 365 Roadmap ID 98185
[When this will happen:]
This change will start rolling out in late October 2023 (previously early October) and should be completed by late December 2023 (previously late November).

Change Category:
XXXXXXX ...

Scope:
XXXXXXX ...

Release Phase:
General Availability

Created:
2023-09-29

updated:
2023-10-21

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changes*

DatePropertyoldnew
2023-10-21MC MessagesSoon, customers with Microsoft Defender for Office 365 plan 2 can create 10,000 block entries and 5,000 allow entries (via admin submissions) in the Tenant Allow Block List for each category (Domains & addresses, Files, and URLs). Customers with Microsoft Defender for Office 365 plan 1 can create 1,000 block entries and 1,000 allow entries (via admin submissions) in the Tenant Allow Block List for each category. Customers with Exchange Online Protection will remain at 500 block entries and 500 allow entries (via admin submissions) in Tenant Allow Block List for each category. The limit for spoofed senders will remain at 1,024 total entries (block entries and allow entries combined) for all service plans.
This message is associated with Microsoft 365 Roadmap ID 98185
[When this will happen:]
This change will start rolling out in early October and should be completed by late November.
Updated October 20, 2023: We have updated the rollout timeline below. Thank you for your patience.
Soon, customers with Microsoft Defender for Office 365 plan 2 can create 10,000 block entries and 5,000 allow entries (via admin submissions) in the Tenant Allow Block List for each category (Domains & addresses, Files, and URLs). Customers with Microsoft Defender for Office 365 plan 1 can create 1,000 block entries and 1,000 allow entries (via admin submissions) in the Tenant Allow Block List for each category. Customers with Exchange Online Protection will remain at 500 block entries and 500 allow entries (via admin submissions) in Tenant Allow Block List for each category. The limit for spoofed senders will remain at 1,024 total entries (block entries and allow entries combined) for all service plans.

This message is associated with Microsoft 365 Roadmap ID 98185
[When this will happen:]
This change will start rolling out in late October 2023 (previously early October) and should be completed by late December 2023 (previously late November).
2023-10-21MC TitleMicrosoft Defender for Office 365 Tenant Allow Block List limits(Updated) Microsoft Defender for Office 365 Tenant Allow Block List limits
2023-10-21MC Last Updated09/29/2023 00:15:552023-10-20T21:36:34Z
2023-10-21MC MessageTagNamesNew feature, Admin impactUpdated message, New feature, Admin impact
2023-10-21MC End Time12/29/2023 09:00:002024-02-05T09:00:00Z

*starting April 2022

Last updated 4 months ago

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