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MC559257 – (Updated) Microsoft 365 Outbound Email Relaypool (archived)

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check before: 2023-06-06

Product:

Defender, Exchange, Microsoft 365 admin center, Microsoft 365 Defender, SharePoint

Platform:

Online, World tenant

Status:

Change type:

Admin impact, Feature update, Updated message

Links:

Details:

Updated June 28, 2023: We have updated this message to ensure visibility. Thank you for your patience.
This is an update regarding the configuration for relaying or forwarding email through Office 365. Please note that while this change was originally implemented in April 2022, we will now be implementing a further enhancement to improve security and reliability of our email services.
[When this will happen:]
Starting May 30, 2023 we will be updating special relay pools used for relayed messages via connectors. This change will impact only the messages sent from domains not registered as accepted domains in your tenant.
To avoid any service disruptions or issues, we strongly recommend you review and complete the suggested actions outlined below.

Change Category:
XXXXXXX ...

Scope:
XXXXXXX ...

Release Phase:

Created:
2023-05-23

updated:
2023-06-29

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changes*

DatePropertyoldnew
2023-06-29MC MessageTagNamesFeature update, Admin impactUpdated message, Feature update, Admin impact
2023-06-29MC Last Updated05/23/2023 00:57:522023-06-28T22:31:11Z
2023-06-29MC MessagesThis is an update regarding the configuration for relaying or forwarding email through Office 365. Please note that while this change was originally implemented in April 2022, we will now be implementing a further enhancement to improve security and reliability of our email services.
[When this will happen:]
Starting May 30, 2023 we will be updating special relay pools used for relayed messages via connectors. This change will impact only the messages sent from domains not registered as accepted domains in your tenant.
To avoid any service disruptions or issues, we strongly recommend you review and complete the suggested actions outlined below.
Updated June 28, 2023: We have updated this message to ensure visibility. Thank you for your patience.
This is an update regarding the configuration for relaying or forwarding email through Office 365. Please note that while this change was originally implemented in April 2022, we will now be implementing a further enhancement to improve security and reliability of our email services.
[When this will happen:]
Starting May 30, 2023 we will be updating special relay pools used for relayed messages via connectors. This change will impact only the messages sent from domains not registered as accepted domains in your tenant.
To avoid any service disruptions or issues, we strongly recommend you review and complete the suggested actions outlined below.
2023-06-29MC CategoryStay InformedPlan For Change
2023-06-29MC TitleMicrosoft 365 Outbound Email Relaypool(Updated) Microsoft 365 Outbound Email Relaypool
2023-06-29MC End Time06/30/2023 09:00:002023-07-31T09:00:00Z

*starting April 2022

Last updated 7 months ago

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