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Use cases → Admin and governance

Enforce email compliance policy across the domain

Apply and monitor compliance rules on all mailboxes via a delegated service account, catching violations in near real time.

Who it is forIT or compliance teams responsible for regulatory or internal email policies.
APIsGmail API, Admin SDK
Typical scopesgmail.readonly, admin.directory.user

The problem

Relying on manual spot checks or user-driven settings for email compliance is unreliable and leaves gaps. Auditors expect provable, consistent enforcement, and violations not caught in time can become reportable incidents.

How it works

  1. Authenticate as a delegated service account with domain-wide authority.
  2. Enumerate all active users using the Admin SDK.
  3. Scan mailboxes for violations using Gmail API queries that match policy criteria.
  4. Log and optionally notify on any detected violations.

What changes

Compliance scans run on schedule, covering every user, and can produce evidence of enforcement and detection for audit or incident response.

The trap in this one. The Gmail API’s query index can lag by several minutes behind actual message delivery, so real-time enforcement is never truly real-time—new violations may be missed on the first scan and only picked up later. If your process assumes every message is immediately visible to the API, you will miss violations that slip through in the window between delivery and index update. This is especially likely with high-volume mailboxes or under heavy load, where the lag increases without warning.

Questions people ask

Can I block or delete non-compliant messages instantly?

No. The Gmail API cannot intercept messages before delivery and may not see new messages until the next index update. Policy should focus on detection and response, not prevention.

How often should scans run?

As often as your risk tolerance allows, but no schedule can eliminate the indexing gap. Daily or hourly is common, but urgent policies may justify more frequent checks.

Want this built?

This is a pattern we run in production. We will set up the delegation and build this on top of it — $500 per hour, most of it working the same day.

Talk to us Or read the setup guide

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