Warmbox AI
AI email warmup tool that builds sender reputation so your cold emails land in inbox, not spam.
About Warmbox AI
Warmbox AI is an email deliverability tool that automatically warms up new email accounts by engaging with real inboxes in its private network to build sender reputation and prevent cold emails from landing in spam. Its AI simulates human-like email interactions—sending, opening, replying, and marking as important—to train email providers that your domain is trustworthy. Warmbox supports Gmail, Outlook, and any SMTP provider.
Key Features
💰 Pricing
Solo from $19/mo; Start-up from $79/mo; Growth from $159/mo.
1 inbox, basic warming
Up to 5 inboxes with advanced features
Up to 15 inboxes for sales teams
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