Transactional and marketing email
Send resets, receipts, newsletters, campaigns, and other product email from one platform instead of splitting tools by message type.
Unitpost
Unitpost is an email platform for product teams that need to send transactional and marketing messages from one system. It supports API, SDK, SMTP, React, and MCP-based sending, with deliverability, analytics, and audience tools built in.
Overview
Unitpost is an email platform for product teams that need to send both transactional and marketing email from the same system. The site positions it as one place to handle password resets, receipts, newsletters, campaigns, and other product messages.
It supports sending through the REST API, SDKs, SMTP, React templates, and AI agents via MCP. The platform also includes deliverability features, audience management, webhooks, analytics, and a visual editor or React-based email workflow.
Features
Multiple sending paths
Use the REST API, official SDKs, SMTP relay, or MCP-capable AI agents to create and send messages in the workflow that fits your stack.
Visual and code-based email creation
Build messages in a visual editor or in React with the @unitpost/email library, template gallery, and reusable components.
Deliverability controls
Use built-in deliverability tools such as domain authentication, suppression lists, rate limiting, and reputation checks to support inbox placement.
Analytics and events
Track send outcomes with delivery, open, and click events, plus timelines and webhooks for downstream workflows.
Audience and consent management
Manage contacts, segments, custom fields, topic-level preferences, and unsubscribe handling for marketing and transactional use cases.
Use Cases
Product and transactional email
Send password resets, login alerts, magic links, order receipts, and shipping updates from the same platform used for campaigns.
Marketing and lifecycle email
Build newsletter, digest, and announcement emails, then manage topics, opt-outs, and branded preferences for recipients.
Template-driven email workflows
Compose messages in React or use the visual editor to create reusable templates and send the same design through code or the dashboard.
Agent-assisted sending
Connect AI agents or MCP-capable tools so they can draft and send email with scoped access instead of full platform permissions.
Event-driven email operations
Track delivery, opens, clicks, bounces, and replies through events and webhooks to keep app workflows in sync.
Pros and Cons
Pros
- Covers both transactional and marketing email in one platform.
- Offers several integration paths, including API, SDKs, SMTP, React templates, and MCP.
- Includes deliverability, analytics, and audience tools in the product.
- Supports both visual email building and code-based composition in React.
- Uses a pricing model that includes marketing email and unlimited contacts on paid plans.
Cons
- The pricing model is based on a monthly sending balance, so teams need to estimate volume and watch overages.
- Automations are mentioned as coming soon, so that part of the workflow is not fully available yet.
FAQ
How can I send email with Unitpost?
Unitpost supports sending email through the REST API, official SDKs, SMTP, React templates, and MCP-capable AI agents. The docs also describe webhooks, inbound email, and a visual email builder.
Does Unitpost offer a free plan?
The pricing page says Unitpost uses a monthly sending balance across channels. Marketing email and unlimited contacts are included on paid plans, while the free tier includes a smaller monthly email allowance and contact limit.
Can I use Unitpost for transactional and marketing email?
Yes. The docs and homepage say you can verify a domain, then send through the API, SDKs, or SMTP from that verified domain. The platform also supports template-based sends and React-based email composition.
What does Unitpost include for deliverability and tracking?
The site says Unitpost includes deliverability features such as domain authentication, suppression handling, rate limits, and reputation checks. Pricing and docs also mention tracking and event history.
Which languages does Unitpost support?
The docs say you can use the official SDKs or call the REST API directly. Supported SDK languages listed on the site include Node, Python, Ruby, PHP, Laravel, Go, Java, Rust, and .NET.
Quick Facts
- Category
- Email platform
- Primary users
- Product teams and developers
- Source URL
- unitpost.com
- Sending methods
- REST API, SDKs, SMTP, React templates, MCP agents
- Pricing model
- Monthly sending balance; free and paid plans
- Core use
- Transactional and marketing email
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