About this website
Groundmail sends the mail a user is waiting on: sign-in codes, password resets, receipts and alerts. Use the HTTP API, an SMTP relay, SDKs for Node, Python, Go, PHP, Ruby and Rust, a CLI or an MCP server. Replies come back to your app by webhook, and AI agents can have real mailboxes they read and reply from. Templates, automations and a test inbox are included. Transactional, product and newsletter mail each send from their own IPs, and cold email and purchased lists are never allowed. Median time from API accept to the recipient's mail server is published hourly at groundmail.dev/proof.
Key features
- Send email through an HTTP API or SMTP relay
- Receive replies in your app by webhook
- AI agent mailboxes for reading and replying
- Templates, automations and a test inbox
- SDKs, CLI and MCP server
Who is this website for?
Developers building apps and AI agents that send and receive email.
What can visitors do here?
Send sign-in codes, password resets, receipts and alerts, and receive replies in your app by webhook.
What makes it different?
Transactional, product and newsletter mail each send from their own IPs. Median delivery time is published hourly at groundmail.dev/proof.
