Email that knows what your customers did.
Send broadcasts to any segment of your contacts, and lifecycle emails triggered by product events — designed in a block builder, sent from your own domain and checked for deliverability before they go.
Workflow emails on Free · Broadcasts from Starter
A builder that makes good email easy.
Build with sections and blocks, pick a layout, apply a preset style and drag to reorder. Output works in Outlook, stacks nicely on phones and supports dark mode.
- Sections, layouts, presets and drag to reorder
- Reusable templates and an image library
- Dark mode and mobile-friendly output
Send to the right people, safely.
Filter your audience by any contact property or product event, preview who'll receive it, then send now or schedule. Readiness checks catch a missing sender setup, and bounces and complaints are handled for you.
- Audiences built from contact data and events
- Schedule, pause and resume broadcasts
- Suppression lists, bounce and complaint handling
Everything you need to send with confidence.
Lifecycle emails
Email steps inside workflows, triggered by events.
A/B testing
Test two subject lines; the winner goes to everyone else.
Open and click tracking
Recorded on each contact's timeline.
Email preferences
Contacts choose which categories they receive.
Test sends
Send yourself a test before anything goes out.
Build with AI agents
Create templates and broadcasts through MCP.
Put HAL on your site today.
Install the widget in five minutes, point HAL at your help content, and let the AI take the first pass at every question.
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