Cold email automation with unlimited mailboxes and automatic inbox rotation
The outreach platform for your AI agent
Stage
Startup
Not given
Founded
2026
Not given
Based in
Not given
US
Pricing model
Freemium
Free trial
Pricing
Free: up to 10,000 sends per month with small footer. Monthly: $25/month (regular $45) with 7-day free trial. Yearly: $199/year (regular $399). All paid plans include unlimited sends, unlimited mailboxes, and unlimited team seats.
Hosted Sellbird is in early access with pricing to be shared before launch. Email accounts and AI plans are billed separately by their providers. Domain purchases and additional inboxes incur separate charges.
Key features
Unlimited mailboxes with automatic rotation
Automatic warm-up ramp
Daily and hourly sending caps
Merge tag personalization
Gmail and Outlook integration
MCP server for Claude and ChatGPT
Find companies matching your customer profile with buying signals
AI agent integration over MCP protocol
Personalized email drafting from research
Draft approval workflow by default
Email warmup and sending infrastructure
Reply collection and sorting
Agent-drafted reply responses
Support for Google Workspace and Microsoft 365
CSV export of contacts and lists
What makes it different
One flat price for unlimited mailboxes and team seats—no per-mailbox fees or per-user charges
Integrated warm-up ramp included in every plan
Bounce intelligence that automatically pauses bouncing inboxes
Manage campaigns from Claude or ChatGPT without leaving your chat
Works with the AI agent you already use—no competing AI, no additional AI costs
Human approval on by default—every email, purchase and reach requires human approval
Open-source and self-hostable version is free
Email verification works independently without running full outreach
Agents work offline after scheduling—emails send and replies collect 24/7
InboxJoy
Sellbird