SMTPfast

st.smtpfav1.0.0Updated Oct 3, 2026

Send and receive email, and manage templates, inboxes, contacts and broadcasts.

VerifiedStreamable HTTPWeb executableCommunication & Collaboration

Overview

AI-generated overview

Lets an assistant send and receive email and manage templates, inboxes, contacts and broadcasts through a hosted SMTPfast endpoint.

What it does
SMTPfast is a remote MCP server that gives an assistant email capabilities: sending and receiving messages, and managing templates, inboxes, contacts and broadcasts. It connects over streamable HTTP to a hosted endpoint, so no local package or runtime is installed. The manifest does not list individual tool names, so the exact tool set is not documented here.
When to use it
Worth adding when an assistant should handle email directly — composing and sending messages, reading incoming mail, or working with contact lists and broadcast campaigns — without a local mail setup. Less useful if you only need occasional one-off email sending.
Requirements
A remote MCP client that supports streamable HTTP, connecting to the hosted SMTPfast endpoint. Authentication is either an SMTPfast API key sent in the Authorization header as a Bearer token, or OAuth when the client supports it. Network access to the endpoint is required.
Before you install
The server handles email, so an assistant can send messages and change or delete templates, inboxes, contacts and broadcasts on your account. The Authorization header carries an SMTPfast API key; treat it as a secret and prefer OAuth where available. Message content and contact data pass through the third-party SMTPfast service.

Installation

In SourceWeft

  1. Open SMTPfast in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "smtpfast": {
      "type": "http",
      "url": "https://smtpfa.st/api/mcp"
    }
  }
}

Tools

0
Tool metadata has not been indexed yet.

Version history

1
  1. v1.0.0LatestOct 3, 2026