I have had a incredible experience with them. They helped me on basically everything including opening inboxes, setting up DNS settings and add it to my sending tool. Extremely helpful on cold email based questions as well. My go to for cold email inboxes.
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Puzzle Inbox provides cold email infrastructure and done-for-you outreach setup for businesses that want to scale outbound reliably. Their offerings include Google Workspace and Outlook Office 365 mailboxes, including pre-warmed inbox options, plus support with the core technical setup needed to start sending (domain/DNS configuration and deliverability-focused configuration).See more
