Puzzle Inbox is a cold email infrastructure provider that supplies ready-to-use email inboxes for outbound sales and cold outreach campaigns. The core offerings include: Google Workspace & Outlook 365 inboxes — pre-configured mailboxes optimized for cold email deliverability Done-for-you setup packages — fully managed inbox provisioning so clients don't have to handle domain purchasing, DNS configuration, or warmup themselves AI-powered outreach tools automation features to support cold email campaigns at scale