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Use cases → Email operations

Enforce email retention policy across the domain

Apply and audit consistent retention rules to all mailboxes using a delegated service account, preventing accidental or intentional data loss.

Who it is forIT and governance teams responsible for compliance and data retention.
APIsGmail API, Admin SDK
Typical scopesgmail.settings.basic, admin.directory.user

The problem

Manual retention configuration is unreliable at scale, leaving gaps that break compliance. Relying on end-users to maintain settings results in inconsistent enforcement and audit trails.

How it works

  1. Enumerate all active users via the Admin SDK.
  2. Impersonate each user with the delegated service account.
  3. Apply or update Gmail retention settings (labels, filters, retention periods) using the Gmail API.
  4. Periodically verify current settings match policy and log discrepancies.

What changes

Retention rules are centrally enforced, with drift surfaced automatically for remediation. Audit logs track policy state and changes for each mailbox.

The trap in this one. Gmail API retention settings are eventually consistent—changes may not take immediate effect, and querying too soon after an update can return stale results. If you verify immediately after applying a rule, your audit will flag false negatives, leading to unnecessary remediation and noise. Schedule verification with a delay, and always log the last update timestamp.

Questions people ask

Can I use this to retroactively purge mail outside retention?

No. Retention settings only apply from the moment of enforcement forward—they do not delete existing mail unless explicitly scripted for that purpose.

Is this the same as Vault retention?

No. Gmail retention settings are user-facing and affect mailbox contents. Vault retention is a legal hold and archive layer, managed separately.

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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