Puzzle Inbox — Pre-Warmed Cold Email Inboxes

Pre-warmed Google Workspace and Outlook inboxes for cold email.

by Carlo Christiansen

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Apr 5, 2026 Marketing & Sales

cold email email marketing lead generation

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Pre-warmed Google Workspace & Outlook inboxes for cold email. DNS-ready, delivered in 24-72h. From $0.35/inbox. Trusted by 1200+ clients.

Milan Lind 6 months ago

what's the warmup schedule look like, gradual ramp over how many days?

Daisy Boyer 6 months ago

how long until these get flagged and need replacing

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