Inbound

Inbound is a developer-focused email API designed for engineering teams building automation workflows. Send and receive emails programmatically with unlimited mailboxes on a single domain, no per-address setup required. Route specific addresses to webhooks or use a catch-all to forward all incoming mail to AI agents, support systems, or custom endpoints. Preserve email threading automatically and reply programmatically while Inbound handles headers and delivery. Ideal for support domains, notification systems, and integration-heavy applications where reliability and scalability matter.