What is Sidemail MCP?

Sidemail MCP is an Email MCP Server that connects AI tools like Claude, VS Code, Cursor, or Windsurf directly to your email stack. It lets you set up transactional email sending, write newsletters, manage contacts and groups, or verify sending domains — all through natural language commands. Every operation runs on Sidemail’s proven email API, ensuring reliable delivery, tracking, and scalability without you needing to handle the underlying email complexity.

Who it's for

• Developers who want to automate email workflows from within their AI coding environment without switching contexts.
• Product teams that need to send transactional emails or newsletters and want to manage contacts and domains through simple chat commands.
• AI power users who rely on tools like Claude Desktop or Windsurf and want to control their email infrastructure directly from their AI assistant.

Key features

Send & manage emails from AI tools

Your LLM can set up transactional email sending or write newsletters via simple commands. Every email goes through Sidemail’s trusted infrastructure, so you don’t need to handle the email complexity yourself.

Organize your contacts & groups

Add or update contacts from inside an AI chat. You can also organize your contacts into groups using MCP tools like create‑group and create‑or‑update‑contact, making audience management effortless.

Domain verification & deliverability

Via the MCP server, you can add, delete, and list your sending domains with automatic DKIM and SPF setup. You get built-in deliverability best practices to ensure your emails hit inboxes reliably.

Works where you work

Sidemail Email MCP server works with popular MCP-compatible clients. Use it in chat-based AI interfaces like Claude Desktop or inside development environments like VS Code, Cursor, and Windsurf — anywhere that supports the Model Context Protocol.

What stands out

"Your AI agent can now help you manage and send your emails — without you ever touching an email API."

This isn't just another email API wrapper. Sidemail MCP turns your AI assistant into a full-fledged email operations tool. You can ask it to draft a product-update email based on recent features, refine the draft in the chat, and then send it to your customers or schedule delivery later — all without leaving your AI environment. The natural prompt workflow keeps you in control, with the AI handling the steps and asking for confirmation before final actions.

Worth checking out if…

You want to streamline your email workflows by letting your AI assistant handle sending, contact management, and domain verification directly from your chat or coding environment. It's especially useful if you're already using Sidemail's infrastructure and want to eliminate context switching between your AI tools and email dashboard.