I’m looking for a reliable automation solution that can gradually warm up more than 20 separate Gmail inboxes so my future campaigns stop landing in the spam folder. The core objective is clear: build and maintain solid sender reputations across every account and avoid Gmail’s spam filters. Here’s what the bot must do from day one: connect to each mailbox, schedule small-volume sends, generate natural-looking opens and replies, and steadily ramp activity at a human-like pace. A web-based dashboard or simple CLI where I can add new accounts, monitor health scores, pause an inbox, or tweak daily limits will make ongoing management easier. Technical freedom is yours—Python with the Gmail API, Node.js plus IMAP/SMTP libraries, even a headless browser setup with Selenium—so long as it runs securely, supports OAuth, and keeps within Google’s daily quotas. Your deliverable is a fully-working script or app, deployment instructions, and a quick walkthrough so I can scale it to additional mailboxes later. If you’ve already built something similar or have a proven warm-up strategy, tell me about it and let’s move forward quickly.