Puzzle Inbox is the go-to cold email infrastructure provider for over 1,200 outbound teams globally. We offer pre-warmed Google Workspace and Microsoft Outlook 365 inboxes, all set up with SPF, DKIM, DMARC, and MX records, allowing your team to start sending emails within 24 to 72 hours. There's no need for domain purchases, DNS complications, or manual warm-up processes. Simply connect to your sending tool and get started. With more than 70,800 active inboxes supporting campaigns across various industries, we provide sales teams with a dependable foundation to scale their outbound efforts without concerns about deliverability or technical configurations. You focus on building your pipeline, and we take care of everything behind the scenes.