Plans & Pricing
Choose the Right Capacity for Every Agent
Start free, then add message capacity, domains, addresses, and retention as your email operations grow.
Compare Plans
Review the commercial limits for every available Unsendbox plan.
| Plan details | Free$0/mo | Starter$14/mo | Pro$59/mo | Team$99/mo |
|---|---|---|---|---|
| Message quota | 3k messages/mo | 50k messages/mo | 100k messages/mo | 500k messages/mo |
| Domains | 1 domain | 2 domains | 5 domains | 10 domains |
| Addresses per domain | 5 agent addresses | 25 addresses / domain | 100 addresses / domain | 200 addresses / domain |
| Retention | 7-day retention | 30-day retention | 90-day retention | 180-day retention |
| Overage rate | Not available | $0.65 / 1k overage | $0.55 / 1k overage | $0.45 / 1k overage |
| Get started | Try it | Get Started | Go Pro | Start Team |
Pricing FAQs
Is There a Free Plan?
Yes. Free includes 3k messages per month, 1 domain, 5 agent addresses, and 7-day retention.
How Are Paid Overages Priced?
Starter overage is $0.65 per 1k messages, Pro is $0.55 per 1k messages, and Team is $0.45 per 1k messages.
Can I Use Unsendbox With MCP?
Yes. Unsendbox supports MCP controls for email operations. MCP access on the Free plan is rate-limited.
Which Plan Has the Longest Retention?
Team includes 180-day retention, the longest retention currently listed across the available plans.
Give Your Agents a Dedicated Email Identity
Start with the plan that fits your current message volume.