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Olib-AI

mailcue

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Realistic email testing server in a single Docker container. SMTP, IMAP, DKIM/DMARC, spam filtering, REST API, Node/Python SDKs, and an MCP server.

22 stars PythonOthers Updated Aug 20, 2026
ci-cddeveloper-toolsdevtoolsdkimdmarcdockerdovecotemailemail-serveremail-testingfastapiimapmail-serverpostfixreactself-hostedsmtpspamassassintestingwebhook

No README could be loaded. View the project on GitHub for full documentation.

Frequently asked questions

What is mailcue?

mailcue is Realistic email testing server in a single Docker container. SMTP, IMAP, DKIM/DMARC, spam filtering, REST API, Node/Python SDKs, and an MCP server.

How do I install mailcue?

Open the GitHub repository and follow its README. Most MCP servers are added to your client's MCP config, then called by your agent.

Is mailcue open source?

Yes — it is hosted on GitHub at https://github.com/Olib-AI/mailcue and has 22 stars.

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