SendHQ
SendHQ is a developer email API for transactional and inbound mail, verified domains, hosted templates, delivery events, suppressions, and AI-agent workflows.
About SendHQ
SendHQ is a developer-focused email infrastructure platform for products, services, and AI agents that need to send and receive email through one API. It supports transactional messages such as receipts, onboarding emails, alerts, and notifications, while also providing inbound email, reply threading, shared inboxes, hosted templates, drafts, attachments, and delivery-event visibility.
Developers can verify sending domains, configure SPF, DKIM, and DMARC records, use workspace-scoped API keys, receive webhooks, inspect bounces and delivery outcomes, and manage suppressions and opt-outs. The public API is documented with an OpenAPI contract and uses a versioned /api/v1 base URL. SendHQ runs on Amazon SES by default with a pluggable provider layer, allowing teams to keep a consistent integration while changing underlying providers through configuration.
It also supports AI-agent workflows, giving agents controlled access to email identities, inboxes, permissions, and human handoff. Free tools cover DNS checks, email preflight analysis, BIMI, and bounce diagnostics. Pricing starts at $9 per month for 10,000 emails and 15 verified domains, with a $29 Scale plan for higher volume.
SendHQ suits developers who want email sending, receiving, observability, and deliverability controls in one system.
Features
- Transactional and inbound email with threads and attachments
- Domain verification with SPF, DKIM, and DMARC guidance
- Delivery events, bounce tracking, suppressions, and opt-outs
- Versioned REST email API with OpenAPI documentation
Use Cases
- Send transactional product emails
- Receive inbound email for support and agent workflows
- Monitor delivery outcomes and handle bounces or unsubscribes safely.
- Publish reusable email templates with previews and version control.
FAQ
What is SendHQ?
It is an email API and infrastructure platform for sending, receiving, and monitoring application email.
Does SendHQ support inbound email?
Yes. It supports inbound addresses, received messages, attachments, replies, and conversation threads.
Can SendHQ work with AI agents?
Yes. It provides controlled email identities, API access, inboxes, permissions, and human handoff workflows.
How much does SendHQ cost?
The Starter plan is $9/month for 10,000 emails and 15 domains. Scale is $29/month with higher limits. 5:29 PM
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