@Phil Grabowski Great questions! Here's how I'd look at each area: 1. Volume vs. TAM We don't rely on one massive list. We prefer breaking the TAM into smaller ICP segments based on industry, company size, location, and decision-maker roles. We continuously refresh lead data using new sources, filters, and verified contacts rather than repeatedly targeting the same audience. 2. Inbox placement Infrastructure plays a big role. We generally prefer Google Workspace and Microsoft 365 over generic SMTP setups. Our approach includes proper SPF, DKIM, DMARC, mailbox configuration, gradual sending limits, and regular deliverability monitoring. We also distribute volume across multiple domains and inboxes rather than pushing too much volume through a few mailboxes. Google and Microsoft inboxes should be tested separately because their filtering behavior can differ. 3. Avatar and offer The avatar and offer should be specific to the target market. We focus on identifying a clear pain point and presenting a relevant solution rather than sending generic sales pitches. A positive reply doesn't automatically mean an opportunity. We would count someone as an opportunity when they show genuine interest and meet the campaign's qualification criteria. Regarding follow-ups: Sending only one email per lead can be a deliberate strategy depending on the campaign, but follow-ups often help capture prospects who missed the initial email. I'd test a short, relevant follow-up sequence rather than assuming one email is enough. One thing I'd emphasize: good results come from combining the right targeting, offer, copy, and infrastructure.