How do I turn off the external domains anomalies channel notifications?

Question

How do I turn off the external domains anomalies channel notifications?

Crystal M. Lund 0

When the feature rolled out, we turned on the External Domains Anomalies report notifications to have the top 5 external domains with unusual communication patters alerted in our MS Teams channel. However, our Security & Compliance is not finding them helpful and it's just cluttering their channel conversations so they'd like it turned off. I have gone into the Teams Admin Center >> Notifications & Alerts >> Rules and opened the "External domains anomalies" alert. I've tried unchecking "channel alert," deleting the target channel, and changing the status to inactive, but the "Save" button grays out so the changes are not accepted. Attempting to navigate away asks if I want to discard my changes. If I discard, everything fills back in and the status returns to active.

How do I turn this off so it stops cluttering the channel conversations?!

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Ruby Nguyen 1,565 Reputation points Independent Advisor

2026-09-11T18:12:03.45+00:00

Hi Crystal,

I hope you're having a good week.

I'm just checking in to see if there have been any updates on the issue. I hope things are moving in the right direction and that a resolution is near.

Whenever you have an update, I'd be grateful if you could let me know.

Thanks again for your time.

1 answer

Your answer

Ruby Nguyen 1,565 Reputation points Independent Advisor

2026-09-11T18:12:03.45+00:00

Hi Crystal,

I hope you're having a good week.

I'm just checking in to see if there have been any updates on the issue. I hope things are moving in the right direction and that a resolution is near.

Whenever you have an update, I'd be grateful if you could let me know.

Thanks again for your time.

Answer 1

Good day Crystal,

The Save button stays unavailable because the rule still requires a valid Notification Team and Notification Channel before the configuration can be saved.

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I recommend trying again in an InPrivate or Incognito browser session and following these steps:

Sign in to the Microsoft Teams admin center.

Go to Notifications & alerts > Rules > Open External domains anomalies.

Keep Channel alert selected for now.

Select a valid Notification Team.

Select an existing Notification Channel within that team.

Change the rule Status to Inactive.

Click Save.

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After the rule is saved as Inactive, new External Domains Anomalies notifications should stop posting to the channel.

If the original channel no longer exists, create or select a temporary channel, assign the rule to that channel, set the rule to Inactive and then save the changes.

If the Save button is still unavailable after completing these steps, please contact Microsoft Support by selecting Need Help? in Teams admin center > Entering "support" to bypass the automated suggestions > Choosing Contact Support. Please include a description of the issue and a relevant screenshot to help with further investigation.

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Note: If you don't see the support option or don't have sufficient administrative permissions, please contact your Global Administrator for assistance.

A technical support engineer can perform a remote session to investigate the situation, verify the backend configurations, and run any necessary synchronization tools to resolve the problem. If the issue requires further attention, they can escalate it to a specialized team for deeper analysis.

I hope this information is helpful. If you have any questions or need further support, please don’t hesitate to reach out at any time.

Thank you for your patience and understanding.

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