check before: 2023-07-27
Product:
Defender, Defender for Office 365, Exchange, Microsoft 365 Defender
Platform:
Online, US Instances, Web, World tenant
Status:
Launched
Change type:
Admin impact, Feature update, Updated message
Links:
Details:
Updated August 30, 2023: We have updated the timing of when these policies will take effect. Thank you for your patience.
In order to better protect our customers from exact domain spoofing attacks and improve deliverability of email, we are making changes to how we handle DMARC p=reject and p=quarantine.
For the enterprise customers, we are making updates to how DMARC policy-based reject can be handled. This change will help Security Administrators be able to choose how DMARC policy-based reject and quarantine can be applied within their organization.
This message is associated with Microsoft Roadmap ID 117533
[When this will happen:]
Standard: Rollout will begin on July 13th, 2023, and policies will take effect by late September 2023 (previously late August). Customers will have 25 days to opt out.
Gov Cloud: Rollout will begin on July 19, 2023 and policies will take effect by late September 2023 (previously late August). Customers will have 25 days to opt out.
Change Category:
XXXXXXX ...
Scope:
XXXXXXX ...
Release Phase:
General Availability
Created:
2023-07-15
updated:
2023-08-31
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changes*
| Date | Property | old | new |
| 2023-08-31 | MC Last Updated | 08/17/2023 00:54:24 | 2023-08-30T20:53:35Z |
| 2023-08-31 | MC Messages | Updated August 16, 2023: We have updated the timing of when these policies will take effect. Thank you for your patience.
In order to better protect our customers from exact domain spoofing attacks and improve deliverability of email, we are making changes to how we handle DMARC p=reject and p=quarantine. For the enterprise customers, we are making updates to how DMARC policy-based reject can be handled. This change will help Security Administrators be able to choose how DMARC policy-based reject and quarantine can be applied within their organization. This message is associated with Microsoft Roadmap ID 117533 [When this will happen:] Standard: Rollout will begin on July 13th, 2023, and policies will take effect by late August 2023. Customers will have 25 days to opt out. Gov Cloud: Rollout will begin on July 19, 2023 and policies will take effect by late August 2023. Customers will have 25 days to opt out. | Updated August 30, 2023: We have updated the timing of when these policies will take effect. Thank you for your patience.
In order to better protect our customers from exact domain spoofing attacks and improve deliverability of email, we are making changes to how we handle DMARC p=reject and p=quarantine. For the enterprise customers, we are making updates to how DMARC policy-based reject can be handled. This change will help Security Administrators be able to choose how DMARC policy-based reject and quarantine can be applied within their organization. This message is associated with Microsoft Roadmap ID 117533 [When this will happen:] Standard: Rollout will begin on July 13th, 2023, and policies will take effect by late September 2023 (previously late August). Customers will have 25 days to opt out. Gov Cloud: Rollout will begin on July 19, 2023 and policies will take effect by late September 2023 (previously late August). Customers will have 25 days to opt out. |
| 2023-08-31 | MC End Time | 10/02/2023 09:00:00 | 2023-11-06T08:00:00Z |
| 2023-08-17 | MC Messages | In order to better protect our customers from exact domain spoofing attacks and improve deliverability of email, we are making changes to how we handle DMARC p=reject and p=quarantine.
For the enterprise customers, we are making updates to how DMARC policy-based reject can be handled. This change will help Security Administrators be able to choose how DMARC policy-based reject and quarantine can be applied within their organization. This message is associated with Microsoft Roadmap ID 117533 [When this will happen:] Standard: Rollout will begin on July 13th, 2023, and policies will take effect by August 10, 2023. Customers will have 25 days to opt out. Gov Cloud: Rollout will begin on July 19, 2023 and policies will take effect by August 14, 2023. Customers will have 25 days to opt out. | Updated August 16, 2023: We have updated the timing of when these policies will take effect. Thank you for your patience.
In order to better protect our customers from exact domain spoofing attacks and improve deliverability of email, we are making changes to how we handle DMARC p=reject and p=quarantine. For the enterprise customers, we are making updates to how DMARC policy-based reject can be handled. This change will help Security Administrators be able to choose how DMARC policy-based reject and quarantine can be applied within their organization. This message is associated with Microsoft Roadmap ID 117533 [When this will happen:] Standard: Rollout will begin on July 13th, 2023, and policies will take effect by late August 2023. Customers will have 25 days to opt out. Gov Cloud: Rollout will begin on July 19, 2023 and policies will take effect by late August 2023. Customers will have 25 days to opt out. |
| 2023-08-17 | MC Title | Microsoft Defender for Office 365: DMARC Policy Handling | (Updated) Microsoft Defender for Office 365: DMARC Policy Handling |
| 2023-08-17 | MC Last Updated | 07/13/2023 02:12:46 | 2023-08-17T00:54:24Z |
| 2023-08-17 | MC MessageTagNames | Feature update, Admin impact | Updated message, Feature update, Admin impact |
| 2023-08-17 | MC End Time | 09/14/2023 09:00:00 | 2023-10-02T09:00:00Z |
*starting April 2022
Last updated 6 months ago
