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Use casesEmail operations

Monitor all shared inboxes centrally with a service account

Track incoming messages to shared mailboxes from one place, so nothing urgent is missed across teams or departments.

Who it is forOps or support teams responsible for triaging enquiries across multiple shared mailboxes.
APIsGmail API
Typical scopesgmail.readonly

The problem

Shared mailboxes handle support, sales, and operations, but no one person watches them all and urgent emails get lost. Relying on forwarding rules or manual checking means missed or duplicated responses.

How it works

  1. Delegate mailbox access to a service account at the domain level.
  2. Enumerate all shared mailboxes that need monitoring.
  3. Periodically use the Gmail API to fetch unread or unlabelled messages for each inbox.
  4. Aggregate and normalise these into a single alert feed or dashboard.
  5. Notify the relevant team or on-call person of new or untriaged messages.

What changes

All shared inboxes are monitored from one automation, so urgent emails surface regardless of which address they arrive at.

The trap in this one. The Gmail API's message list endpoint only returns up to 100 results by default and paginates silently; if a shared inbox receives a burst, older unread messages will not appear unless you handle page tokens explicitly. This causes silent data loss in busy mailboxes unless you always paginate to completion.

Watch it explained

Unmanaged and Conflicting Accounts and using User Invitation API to Invite Users” — Google Workspace Admins on YouTube. Third-party video, included because it covers this ground well. We are not affiliated with the channel.

Questions people ask

Can this monitor delegated mailboxes in real time?

Not exactly. The Gmail API does not support push notifications for delegated accounts, so you must poll on a schedule. Latency depends on your polling frequency.

How do you avoid duplicate notifications?

Track message IDs and only alert on messages not previously seen. The Gmail API message ID is stable for this purpose.

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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