I need a Chrome extension that plugs directly into Gmail and lets me queue and send large volumes of marketing emails without tripping Gmail limits. The workflow should feel native: compose in Gmail, select or upload a CSV of recipients, hit “Send Campaign”, and let the system stagger-send in the background. Core requirements • Bulk sending engine – use the Gmail API and a Google Cloud back-end so messages are metered intelligently and Google policies are respected. • Marketing-grade tracking – pixel and link tracking for open rate, click-through rate, and bounce rate, surfaced in a simple dashboard inside the extension. • Follow-ups – automated follow-up emails, sequential series, and reminders when a message remains unread after a configurable time. • Cloud configuration – project will live in my Google Cloud account; all code should be deploy-ready (Cloud Functions, App Engine, or another reasonable service). • Authentication – OAuth2 with the user’s Google account; no sensitive scopes beyond what the functions need. Deliverables 1. Source code for the Chrome extension and Google Cloud services. 2. Installation guide and quick-start manual. 3. Short demo video or live walkthrough proving: bulk send executes, tracking data records accurately, scheduled follow-ups fire at the right time. Acceptance criteria – A test campaign of 500 contacts completes without manual intervention. – Dashboard correctly displays open, click, and bounce metrics within 5 minutes of each event. – Follow-up series sends according to the timing rules set in the UI. Tech stack can include Node.js, Firebase, or Python—whatever you prefer—as long as it stays within the Google Cloud ecosystem and the final bundle passes Google extension review.