↳ GitHub sourceAnalytics ruleMedium
Valimail Enforce - Email Authentication Key Deleted
Description
This query searches for deletion of SPF delegations or DKIM keys, which are medium-severity events
that could degrade email authentication posture for a domain.
- Rule type
- Scheduled
- Version
- 1.0.0
- Declared status
- Available
- Query frequency
- 1h
- Query period
- 1h
- Trigger
- gt 0
Declared MITRE coverage
Declared sources
Metadata from the source file. No dependencies inferred from KQL.
Connectors
Data types
KQL query
Original query, unchanged.
ValimailEnforceEvents_CL
| where EventSeverity == "Medium"
| where EventCategory in ("SPFConfiguration", "DKIMConfiguration")
| where IsHighValueEvent == true
| summarize
EventCount = count(),
FirstSeen = min(PerformedAt),
LastSeen = max(PerformedAt),
AffectedDomains = make_set(Subject),
Actions = make_set(EventType)
by User, EventCategory
| extend
AccountName = tostring(split(User, "@")[0]),
AccountDomain = tostring(split(User, "@")[1]),
DomainName = tostring(AffectedDomains[0])
Declared entities
Related content
Links established from declared identifiers and solution manifests.
Source provenance
GitHubDisplayed values come from files in Azure/Azure-Sentinel. They describe the published template, not your workspace configuration.
- Commit
9800e51↗- Source identifier
483078c6-d029-40f3-931a-30af0032008b
GSTEP / CATALOG TRACKING
Added to catalog : 16 Sept 2026 · 05:49 UTC
Last change observed : 16 Sept 2026 · 05:49 UTC