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Use cases → Email operations

Alert on sensitive keywords in user emails

Scan user mailboxes for predefined keywords and generate alerts when sensitive phrases are detected, without direct user involvement.

Who it is forSecurity teams and compliance officers monitoring for data leakage or policy violations.
APIsGmail API
Typical scopesgmail.readonly

The problem

Sensitive information can be sent or received by users without oversight, exposing the organisation to risk. Manual review is impractical at scale, and users are often unaware of policy boundaries.

How it works

  1. Identify a list of sensitive keywords or phrases relevant to your compliance requirements.
  2. Use a delegated service account to call the Gmail API and search user mailboxes for matching terms using query syntax.
  3. Process only relevant metadata and snippets to minimise data exposure.
  4. Log and alert on matches, including enough context for follow-up but not full message bodies unless justified.
  5. Review findings for false positives and adjust queries iteratively.

What changes

You get near-real-time alerts when sensitive terms appear in mail, allowing for faster response and clear audit trails.

The trap in this one. Gmail API's search does not guarantee coverage of all message parts—matches in attachments, images, or some encoded sections are silently missed. Engineers often assume a query for 'confidential' finds every instance, but only plain body text and indexed metadata are covered. This leads to missed incidents if policy writers don't understand Gmail's search boundaries.

Questions people ask

Does this approach read every message?

No, it relies on Gmail's search functionality, which indexes subject, sender, and plain body text, but not all attachment content.

How fast are alerts after a message arrives?

There's a short indexing delay—typically a few minutes—before new messages are searchable via the API.

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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