ColdBox.io is the most advanced cold email platform that combines AI-powered personalization, enterprise-grade deliverability, and real-time analytics to transform your lead generation into a revenue-driving machine.
Email Deliverability
Emails Delivered
Active Users
Customer Rating
Trusted by industry leaders and fast-growing startups
See the incredible impact ColdBox.io has made for businesses worldwide
Email Deliverability Rate
Emails Delivered Successfully
Average Open Rate Increase
ROI Improvement
Active Users
Customer Satisfaction
ColdBox.io combines cutting-edge technology with proven sales strategies to give you the ultimate competitive advantage in email outreach.
Our proprietary warm-up algorithm gradually increases your sending reputation using real human interactions, ensuring your emails land in inboxes, not spam folders.
Leverage advanced machine learning to create hyper-personalized emails that resonate with each prospect, increasing response rates by up to 300%.
Multi-layered deliverability engine with real-time monitoring, domain health checks, and automatic optimization to ensure maximum inbox placement.
Deep insights into your campaign performance with real-time tracking, predictive analytics, and actionable recommendations to continuously improve results.
Automated split testing with statistical significance calculations, helping you identify the best-performing subject lines, content, and sending times.
Enterprise-grade collaboration tools with role-based permissions, shared templates, team performance tracking, and unified reporting dashboard.
Our streamlined process gets you from setup to sending high-converting cold emails in just a few simple steps.
Securely connect your email accounts using OAuth2 authentication. We support Gmail, Outlook, and all major email providers with enterprise-grade security.
Our AI-powered warm-up system begins building your sender reputation immediately, preparing your domains for high-volume sending with maximum deliverability.
Upload your prospect lists or connect your CRM. Our intelligent segmentation helps you target the right people with the right message at the right time.
Use our drag-and-drop sequence builder to create multi-step campaigns with AI-powered personalization and automatic follow-ups that convert prospects into customers.
Deploy your campaigns with confidence. Our real-time analytics and optimization suggestions help you continuously improve performance and maximize ROI.
See how leading companies are transforming their sales pipeline with ColdBox.io
SaaS Company
"ColdBox.io transformed our lead generation. We went from 20 qualified leads per month to over 90, with our response rates increasing dramatically thanks to their AI personalization."
B2B Services
"The deliverability and analytics features helped us generate $2.4M in new revenue within 6 months. ColdBox.io pays for itself many times over."
Marketing Agency
"We scaled our client acquisition by 15x using ColdBox.io. The warm-up feature ensured our emails always reached the inbox, and the team collaboration tools streamlined our entire process."
Transparent pricing that scales with your business. No hidden fees, no setup costs, cancel anytime.
Join thousands of successful businesses who trust ColdBox.io for their email outreach
"ColdBox.io completely revolutionized our lead generation process. We've seen a 400% increase in qualified leads and our sales team is closing more deals than ever before. The AI personalization is incredibly accurate and saves us hours of manual work."
"The deliverability features are outstanding. Our emails actually reach the inbox now, and we're seeing response rates we never thought possible. The analytics dashboard gives us insights that help us continuously improve our campaigns."
"Finally, an email platform that actually delivers results! The warm-up feature ensured our emails never hit spam, and the team collaboration tools make managing our entire sales process seamless. ROI has been incredible."
"ColdBox.io helped us scale from $100K to $2M ARR in just 18 months. The platform is incredibly intuitive, the support team is amazing, and the results speak for themselves. This is the only cold email tool you'll ever need."
"The A/B testing and analytics features are game-changers. We can now optimize our campaigns in real-time and see exactly what's working. Our conversion rates have improved by over 300% since switching to ColdBox.io."
"As a marketing agency, ColdBox.io has become our secret weapon. The client results we achieve are consistently outstanding, and the platform scales perfectly as we grow. Highly recommend to any serious business."
ColdBox.io integrates with 200+ popular business tools to streamline your workflow
Everything you need to know about ColdBox.io
Join 50,000+ businesses using ColdBox.io to generate more leads, close more deals, and grow their revenue through powerful cold email outreach.