Elastic Security Detection Rules

Microsoft 365 User Restricted from Sending Email

Last updated 4 months ago on 2025-01-15
Created 4 years ago on 2021-07-15

About

Identifies when a user has been restricted from sending email due to exceeding sending limits of the service policies per the Security Compliance Center.
Tags
Domain: CloudData Source: Microsoft 365Use Case: Configuration AuditTactic: Initial AccessLanguage: kuery
Severity
medium
Risk Score
47
MITRE ATT&CK™

Initial Access (TA0001)(opens in a new tab or window)

↳ Valid Accounts (T1078)(opens in a new tab or window)

False Positive Examples
A user sending emails using personal distribution folders may trigger the event.
License
Elastic License v2(opens in a new tab or window)

Definition

Rule Type
Query (Kibana Query Language)
Integration Pack
Prebuilt Security Detection Rules
Index Patterns
filebeat-*logs-o365*
Related Integrations

o365(opens in a new tab or window)

Query
event.dataset:o365.audit and event.provider:SecurityComplianceCenter and event.category:web and event.action:"User restricted from sending email" and event.outcome:success

Install detection rules in Elastic Security

Detect Microsoft 365 User Restricted from Sending Email in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).