Mail2Follow facilitate you following-up relevant Gmail threads need a follow-up. The proposal they never answered. The invoice still unpaid. The task you delegated and never heard back on. What's different: - Auto-surfaces follow-up candidates, ranked by priority - Optional open detection, kept separate from the follow-up signal - Blocklist for sensitive domains (banks, healthcare, recruiters) - Public opt-out page for any recipient - Works inside Gmail, no separate inbox - Zapier integration