Keep Defender for Identity email and Syslog notifications on sensor v2 dependencies

Keep this document to one review outcome: Keep Defender for Identity email and Syslog notifications on sensor v2 dependencies. Only the official source and traced locations below supply facts. Confirm applicability before acting.

Source fact:

The official Defender for Identity notifications in Microsoft Defender from Microsoft supports the following bounded statements:

• Defender for Identity notifications are supported only by sensor v2.x. The research record locates this support at Opening applicability statement.
• The service can notify on health issues and security alerts through email or a Syslog server. The research record locates this support at Opening notification overview.

Do not import neighboring assumptions into the source record. The supported task is a scoped comparison involving identity detections, contributing events, entities, alert logic, tuning, exclusions, investigation, and response decisions and the conditions the source actually describes.

What the source does not establish

Notifications are delivery mechanisms rather than authoritative retention or response systems; monitor failures and plan for the v3 feature limitation. The citation is not a substitute for observed state, authorization, compliance evidence, or dependency health. Examine Active Directory, Windows DNS, sensor health, time, network visibility, cloud analytics, endpoint evidence, and security operations before translating the source into an operational decision.

Applicability questions

• For source statement 1 at Opening applicability statement, which observable configuration, record, or test can confirm applicability here?
• For source statement 2 at Opening notification overview, which observable configuration, record, or test can confirm applicability here?
• Which deployed instance of identity detections, contributing events, entities, alert logic, tuning, exclusions, investigation, and response decisions will be compared with the source, and why that instance?
• How will the review distinguish a source mismatch from a failure in Active Directory, Windows DNS, sensor health, time, network visibility, cloud analytics, endpoint evidence, and security operations?
• Who approves the conclusion, exception, test window, and rollback threshold?

DSE recommendation:

DSE recommends using the cited source as the evidence anchor for this decision. Use a two-person review for the source interpretation and the resulting operational decision. Record the source location, examined part of identity detections, contributing events, entities, alert logic, tuning, exclusions, investigation, and response decisions, observed and expected states, owner, and reason for deviation.

If the review warrants change, use a bounded implementation with prerequisites, test population, monitoring, abort criteria, and a rehearsed reversal. Sequence checks for Active Directory, Windows DNS, sensor health, time, network visibility, cloud analytics, endpoint evidence, and security operations and sanitize protected material before retention.

Verification and evidence

Build a reproducible chain from Opening applicability statement; Opening notification overview to the observed environment. Useful domain evidence includes sanitized alerts, source events, entity timelines, tuning conditions, exclusion scope, analyst findings, and response outcomes; label every item with scope, timestamp, collector, and stable identifier.

Preserve both successful and failed observations, along with approval and rollback evidence. Avoid uncontrolled production experiments. Assign an expiry or event-driven recheck so the conclusion is not treated as permanent.

Official references

• Defender for Identity notifications in Microsoft Defender — Microsoft