Freedom251 › Email Design Software
Unitpost
What Unitpost is
Unitpost provides transactional and marketing email infrastructure for teams sending messages from apps or campaigns. Emails can be composed in a visual editor, written as TSX, or created through an AI agent. Templates support typed variables and fallback values; users can preview them and send test messages to a real inbox. Contact records can have custom fields and segments, and the service automatically suppresses opt-outs, bounces, and complaints.
Delivery rates, open tracking, click tracking, and an event timeline are among its analytics. Integrations include a REST API, SMTP relay, and SDKs for Node.js, Python, Ruby, PHP, Laravel, Go, Rust, Java, and .NET. A hosted MCP server is presented for use with Cursor, Claude Code, GitHub Copilot, Gemini CLI, Windsurf, OpenCode, and Grok. Webhooks are HMAC-signed and retried until acknowledged; inbound email can be parsed into customer workflows.
Unitpost describes DKIM, SPF, and DMARC authentication, suppression, idempotency, and rate limits as deliverability measures. Its privacy policy says it processes recipient and message data to provide the service and does not sell that data. Plans range from Free for side projects to custom Enterprise terms for high-volume or specialized needs. The listed Free allowance is 5,000 emails per month and 200 per day; paid sending can exceed the monthly allowance up to twice that amount before sending pauses.
Who it suits
Unitpost suits developers and teams that need transactional or marketing email with template editing, contact segments, analytics, and API or SMTP integration. Its plan descriptions target side projects, production apps, scaling teams, and senders handling over one million messages or needing custom terms.
What it does well
- Build templates visually or in TSX, with variables and fallbacks.
- Tracks delivery, opens, clicks, and event timelines.
- Lists SDKs for nine languages and frameworks.
- Provides REST API, SMTP relay, webhooks, and inbound email parsing.
- Automatically suppresses opt-outs, bounces, and complaints.
- Free plan includes 5,000 emails per month.
What to know first
- Free sending stops at its monthly quota or daily cap.
- Sending pauses after paid overages reach twice the monthly allowance.
- Enterprise pricing is custom.
Limits
The Free plan includes 5,000 emails per month and a 200-email daily cap; sending stops when either limit is reached. Paid plans allow overage sending up to twice the monthly allowance, after which sending pauses.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free | $0/ mo · 5k emails / mo · 200 emails / day · 10k contacts · 5 domains · 2 webhook endpoints · 3 API keys · 7-day event history | Free |
| Growth | $200/ mo · 250k emails shown on plan card; comparison table says ~250k–1M emails · 100 domains · 10 team seats · 25 webhooks · 50 API keys · priority deliverability | $200 a month |
| Starter | $30/ mo · 50k emails shown on plan card; comparison table says ~20k–125k emails · 10 domains · 3 team seats · 5 webhooks · 10 API keys · no daily sending cap | $30 a month |
| Enterprise | Custom · Custom rates · custom limits · dedicated support · annual invoicing & ACH | On request |
As unitpost.com lists them, read 30 Sept 2026. The maker's own page has the final word.
Getting started
- Visit the Unitpost website.
- Choose Free, Starter, Growth, or Enterprise based on your sending needs.
- Create templates visually or in TSX, then add variables and fallbacks.
- Connect through an SDK, REST API, or SMTP relay.
- Configure domain authentication and add contacts or segments.
Verdict
Choose Unitpost if you need email infrastructure with both visual and code-based templates, broad developer integrations, and contact suppression. The Free plan can suit side projects, while paid plans provide larger sending allowances. Check the plan limits carefully if your sending may reach the daily or overage caps, and contact Unitpost for Enterprise pricing.
Questions
Is Unitpost free?
Yes. The Free plan costs nothing and includes 5,000 emails per month, a 200-email daily cap, 10,000 contacts, and other listed allowances.
What are the listed paid plan prices?
Starter is listed at $30 a month and Growth at $200 a month. The pricing note also says paid plans start from $10/mo; Enterprise is custom.
Which developer integrations does Unitpost offer?
It lists a REST API, SMTP relay, and SDKs for Node.js, Python, Ruby, PHP, Laravel, Go, Rust, Java, and .NET.
Can I create email templates with code?
Yes. Templates can be built visually or in TSX, with typed variables and fallbacks. HTML export is listed.
What happens when a plan reaches its sending limit?
Free sending stops at the monthly quota or daily cap. Paid plans allow overage sending up to twice the monthly allowance, after which sending pauses.
Who operates Unitpost?
The site identifies Work Reactor Inc. as the company operating Unitpost and lists an address in Wilmington, Delaware.
Facts from Unitpost's own pages
- AI integrations
- The hosted MCP server is presented for use with Cursor, Claude Code, GitHub Copilot, Gemini CLI, Windsurf, OpenCode, and Grok. · unitpost.com, 30 Sept 2026
- Analytics
- The product lists delivery rates, open tracking, click tracking, and an event timeline. · unitpost.com, 30 Sept 2026
- Audience
- The site positions Free for side projects, Starter for production apps, Growth for scaling teams, and Enterprise for senders sending 1M+ or needing custom terms. · unitpost.com, 30 Sept 2026
- Company
- The site identifies Work Reactor Inc. as the company operating Unitpost and lists an address in Wilmington, Delaware. · unitpost.com, 30 Sept 2026
- Contacts and consent
- Contacts support custom fields and segments, while opt-outs, bounces, and complaints are automatically suppressed. · unitpost.com, 30 Sept 2026
- Data handling
- Unitpost says it acts as processor for recipient and message data, processes that data to provide the service, and does not sell it. · unitpost.com, 30 Sept 2026
- Deliverability
- Unitpost describes DKIM, SPF, and DMARC domain authentication, automatic suppression, idempotency, and rate limits as deliverability measures. · unitpost.com, 30 Sept 2026
- Email design
- Users can build templates visually or in TSX, personalize them with typed variables and fallbacks, preview them, and send tests to a real inbox. · unitpost.com, 30 Sept 2026
- Headquarters
- Wilmington, Delaware, United States · unitpost.com, 28 Sept 2026
- Integrations
- The site lists SDKs for Node.js, Python, Ruby, PHP, Laravel, Go, Rust, Java, and .NET, along with a REST API and SMTP relay. · unitpost.com, 30 Sept 2026
- Plan limits
- The Free plan stops sending at its monthly quota or daily cap; paid plans allow overage sending up to twice the monthly allowance, after which sending pauses. · unitpost.com, 30 Sept 2026
- Product
- Unitpost provides transactional and marketing email infrastructure through an editor, code, or AI agent. · unitpost.com, 30 Sept 2026
- Security
- The privacy policy lists encryption in transit and at rest, managed-key encryption for sensitive credentials, hashed API keys, signed webhooks, rate limiting, and access controls. · unitpost.com, 30 Sept 2026
- Support
- The Enterprise plan includes dedicated support, and the privacy policy identifies Intercom as the in-app and website support messaging subprocessor. · unitpost.com, 30 Sept 2026
- Webhooks and inbound
- Webhooks are HMAC-signed and retried until acknowledged, and inbound email can be parsed into customer workflows. · unitpost.com, 30 Sept 2026
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