
About Shipmail
Business email hosting with an API for agents: custom-domain mailboxes agents can send from and read, webhooks, TypeScript and Python SDKs, a CLI and an MCP server.
3 email tools you can use instead of Shipmail. Summaries come from each vendor's own site. Links checked Oct 20, 2026.

Business email hosting with an API for agents: custom-domain mailboxes agents can send from and read, webhooks, TypeScript and Python SDKs, a CLI and an MCP server.
At a glance
| Tool | What it does | Open source | Head to head |
|---|---|---|---|
| AgentMail | Email inbox API for agents: create, send, and receive real inboxes. | No | Shipmail vs AgentMail |
| Mailgun | Email API to send, receive, and track email. | No | Shipmail vs Mailgun |
| Resend | Developer email API for transactional and marketing mail. | No | Shipmail vs Resend |
FAQ
Agent Stack Directory lists 3 other email tools: AgentMail, Mailgun, Resend.
None of the other email tools we list is marked open source.
Business email hosting with an API for agents: custom-domain mailboxes agents can send from and read, webhooks, TypeScript and Python SDKs, a CLI and an MCP server. (Summary based on shipmail.to, link checked 2026-10-20.)