FeaturesSend 10x More Emails. Book 3x More Meetings. Automatically.
95%+ inbox placement. AI agents that reply in under 60 seconds. Automated warmup, follow-ups, and meeting booking — so your team closes deals instead of chasing them.
Why UsWhy 2,000+ Sales Teams Switched to ColdBox
The only cold outreach platform with proven 95%+ deliverability, built-in AI reply agents, and automated warmup — starting free.
Save 20+ Hours Per Week
Eliminate manual warmup, follow-ups, and list verification. ColdBox automates the busywork so your reps spend 100% of their time closing.
95%+ Inbox Placement — Guaranteed
Real-time domain health scores and automated fixes ensure every email hits the primary inbox. Stop losing deals to the spam folder.
Launch in Under 5 Minutes
Connect unlimited accounts, import your leads, and start sending — all from one dashboard. Zero learning curve, instant results.
Enterprise-Grade Security
CASA certified with end-to-end encryption. Your proprietary lead data is protected by the highest cloud application security standards.
AI That Sounds Human
Our AI agents craft replies that prospects can't distinguish from a real person. Natural conversation patterns that build trust and book meetings.
24/7 Expert Support
Dedicated cold outreach specialists available around the clock. Get campaign audits, deliverability fixes, and strategic advice — free on every plan.
PlatformProven Tools That Turn Cold Leads Into Booked Meetings
From first email to signed deal — every feature is engineered to fill your calendar faster with less manual effort.
Send 50,000+ Personalized Emails That Feel Hand-Written
Launch multi-step sequences with automated follow-ups that adapt to each prospect's behavior. Liquid templates, dynamic variables, and AI spintax make every email unique — proven to generate 2.5x more replies than generic blasts.
- Multi-step sequences with conditional branching for 40%+ open rates
- Automated follow-ups triggered by opens, clicks, and replies
- Liquid template personalization — every email feels 1-to-1
- Timezone-aware scheduling for optimal delivery windows
- AI spintax generates unlimited unique copy variations instantly
- Clone top-performing campaigns in one click
Book Meetings on Autopilot — 24/7, Even While You Sleep
AI Reply Agents respond to prospects in under 60 seconds, handle objections, and book meetings directly on your calendar. ML-powered lead scoring surfaces your hottest deals first, so your team never wastes time on cold leads.
- AI Reply Agent responds instantly — with human approval or full autopilot
- AI Sales Agent closes deals autonomously, 24 hours a day
- Autopilot mode: fully automated outreach from first email to booked meeting
- ML lead scoring ranks prospects by buying intent automatically
- AI-optimized send times boost open rates by up to 35%
- Generate entire sequences from a single prompt in seconds
95%+ Inbox Placement — or Your Warmup Is Free
Our built-in warmup engine has sent 50M+ emails to build sender reputation automatically. Real-time domain health monitoring catches deliverability issues before they cost you deals. No more landing in spam.
- Automated email warmup with proven human-like sending patterns
- Premium warmup tier with priority inbox placement providers
- Inbox placement testing across Gmail, Outlook, and Yahoo
- Instant SPF, DKIM, and DMARC verification and alerts
- Real-time domain health scoring — fix issues before they hurt
- Automated bounce detection protects your sender reputation
- AI spam analysis flags risky content before you hit send
- Custom tracking domains for branded, trustworthy links
See Exactly What's Working — and Double Down
Track every open, click, and reply in real time. A/B test subject lines, CTAs, and send times to find proven winners. Automated reports land in your inbox weekly so you never miss an optimization opportunity.
- Real-time open, click, and reply tracking — zero delay
- Campaign dashboards that show ROI at a glance
- Lead-level engagement scoring reveals your hottest prospects
- A/B testing with statistical significance — stop guessing
- One-click export to Excel and PDF for stakeholder reporting
- Scheduled automated reports delivered to your inbox
- Custom tracking domains for higher click-through rates
Lead ManagementConvert More Leads With Zero Manual Data Entry
Import, deduplicate, segment, and track every lead from one workspace. Spend less time organizing — more time closing.
Import 100K Leads in Seconds
Drag-and-drop CSV upload with automatic field mapping and instant deduplication. Go from list to live campaign in under 2 minutes.
Segment Leads for 2x Higher Reply Rates
Tag, label, and filter leads by industry, intent, or any custom field. Targeted segments convert at double the rate of bulk blasts.
Never Lose a Hot Lead Again
Automated follow-up reminders and real-time notifications ensure you re-engage prospects at the perfect moment — when buying intent is highest.
One Inbox for Every Account
See every reply from every connected mailbox in a single threaded view. Respond faster, close more deals, and never let a conversation slip through the cracks.
One-Click Export for Instant Reporting
Export lead data, engagement history, and campaign performance to Excel or PDF. Share proven results with stakeholders in seconds.
Turn Anonymous Visitors Into Leads
Install a single tracking pixel to identify companies visiting your site. Automatically add high-intent visitors to outreach campaigns — before your competitors reach them.
IntegrationsPlug Into Your Existing Stack in Minutes
Native CRM integrations, unlimited team seats, and a full API — ColdBox fits into your workflow from day one.
+ new integrations shipping monthly
Team Workspaces
Give every rep their own campaigns while sharing proven templates across the team. Role-based permissions keep data secure as you scale.
API & Webhooks
Full REST API and real-time webhooks let you build custom automations. Trigger actions instantly when leads open, click, or reply.
CRM Sync — Bi-Directional
Automatically push new leads to HubSpot, Salesforce, or Pipedrive. Pull deal updates back. Zero manual data entry, always in sync.
Unlimited Email Accounts
Connect Google Workspace, Microsoft 365, or any IMAP/SMTP provider. Scale sending volume safely across unlimited inboxes.
Key BenefitThe Unfair Advantages That Set ColdBox Apart
Automated Warmup — 95%+ Inbox Rate
Our AI warmup engine builds your sender reputation automatically with human-like email patterns. Reach the primary inbox from day one.
A/B Test Everything — Find Winners Fast
Test subject lines, email body, CTAs, and send times with statistically significant results. Stop guessing, start scaling what works.
CASA Certified Data Protection
End-to-end encryption and CASA certification protect every lead. Your data meets the highest cloud application security standards.
Free Expert Support — 24/7
Cold outreach strategists available around the clock on every plan. Get campaign audits, deliverability help, and proven playbooks at no extra cost.
Complete Feature Set90+ Proven Features — All Included, Starting Free
Everything you need to launch, optimize, and scale cold outreach that books meetings on autopilot. No hidden fees.
Email Campaigns
- Multi-step email sequences
- Automated follow-up scheduling
- Conditional campaign logic
- Liquid template personalization
- Dynamic variable insertion
- Spintax content generation
- Campaign templates & cloning
- Timezone-aware scheduling
- Bulk campaign management
- Draft mode & preview
AI & Automation
- AI Reply Agent
- AI Sales Agent
- Autopilot outreach mode
- ML-based lead scoring
- AI send time optimization
- AI sequence generation
- Smart spintax suggestions
- Automated objection handling
- Meeting booking automation
- Human-in-the-loop approvals
Deliverability
- AI email warmup engine
- Premium warmup tier
- Inbox placement testing
- Domain health monitoring
- SPF/DKIM/DMARC verification
- Bounce detection & handling
- Spam content analysis
- Custom tracking domains
- Sender reputation scoring
- Blacklist monitoring
Lead Management
- CSV import with field mapping
- Lead deduplication
- Custom labels & tags
- Smart lead segmentation
- Follow-up reminders
- Lead activity timeline
- Bulk lead operations
- Lead data enrichment
- Contact list management
- Lead status tracking
Analytics & Reports
- Real-time open tracking
- Click tracking
- Reply rate analytics
- Campaign performance dashboard
- Lead-level engagement data
- A/B test analysis
- Exportable Excel reports
- Exportable PDF reports
- Scheduled automated reports
- Conversion funnel metrics
Inbox & Communication
- Unified Inbox (Unibox)
- Conversation threading
- Multi-account inbox view
- Quick reply templates
- Email read receipts
- Inbox categorization
- Priority inbox sorting
- Conversation search
- Email thread history
- Reply sentiment detection
Team & Collaboration
- Multi-user team accounts
- Role-based permissions
- Shared campaign library
- Team activity dashboard
- Account-level settings
- Team member invitations
- Workload distribution
- Campaign assignment
- Shared lead pools
- Team performance metrics
Integrations & API
- REST API access
- API key management
- Webhook event notifications
- HubSpot integration
- Salesforce integration
- Pipedrive integration
- Zapier compatibility
- Custom webhook endpoints
- OAuth provider connections
- IMAP/SMTP email providers
Compliance & Safety
- Global email blocklist
- One-click unsubscribe
- Unsubscribe link management
- CASA certification
- End-to-end encryption
- GDPR-ready tools
- CAN-SPAM compliance
- Data retention controls
- Audit logging
- Website visitor tracking pixel
Your Data Is Safe.
Enterprise-Grade Security, Standard.
CASA certified, end-to-end encrypted, and monitored 24/7. Your prospect data and sending infrastructure are protected by the highest cloud security standards.
End-to-End Encryption
TLS 1.3 in transit, AES-256 at rest. Your proprietary prospect lists are protected by military-grade encryption — guaranteed.
GDPR & CAN-SPAM Compliant
Automated unsubscribe handling, consent tracking, and data residency controls built in. Scale globally without compliance risk.
CASA Certified
Cloud Application Security Assessment certified. Verified security controls that meet the rigorous standards required by Google and leading cloud platforms.
Role-Based Access Control
Granular permissions for every team member. Control exactly who can see, edit, or export data — essential as your team scales.
99.9% Uptime — Guaranteed
Redundant infrastructure with automatic failover. Your campaigns keep sending and booking meetings around the clock, without interruption.
Full Data Portability — No Lock-In
Export contacts, sequences, and analytics at any time with one click. Your data belongs to you, period. Zero lock-in, zero hassle.
FAQ'sGot Questions? We Have Answers.
Everything you need to know before launching your first campaign. Still have questions? Our team is available 24/7.
No. ColdBox delivers 95%+ inbox placement rates thanks to our built-in AI warmup engine, which gradually builds your sender reputation using a network of real inboxes. Your emails land in the Primary tab from day one. Start your free trial and see the difference in your first campaign.
Yes — unlimited accounts on every plan. Connect Gmail, Outlook, Microsoft 365, or any IMAP/SMTP provider. ColdBox automatically spreads your sending volume across inboxes to maximize deliverability and keep your domains safe. Most teams are fully connected in under 5 minutes.
Plans range from 5,000 emails/month on Starter ($30/mo) to 525,000 on Max ($319/mo). Every limit is designed to protect your domain reputation while maximizing outreach volume. Need more? Contact us for custom enterprise limits. Start free with our Trial plan to test the platform risk-free.
AI Reply Agents automatically respond to prospect replies in under 60 seconds — handling objections, answering questions, and booking meetings on your calendar via Calendly. Choose full Autopilot for hands-free operation, or Human-in-the-Loop where AI drafts replies for your approval. Teams using AI Reply Agents book 3x more meetings. Try them free today.
Yes. Native bi-directional sync with HubSpot, Salesforce, Pipedrive, and Zoho — plus Zapier for 5,000+ app connections. Leads, deals, and engagement data sync automatically. Connect Slack for instant reply notifications and Calendly for automated meeting booking. Setup takes minutes, not hours.
Absolutely. ColdBox supports unlimited team members with role-based permissions, shared campaign libraries, and team performance dashboards. Assign inboxes, control data access, and track every rep's results from one admin dashboard. Start your free trial and invite your entire sales team today.