What is mxprobe?
mxprobe is a MCP server by andrewchmr that email verification for AI agents: returns send, hold or kill for an address with a reason, using local DNS checks or a hosted SMTP probe. It is listed under Communication and has 2 GitHub stars.
| Type | Mcp server |
|---|---|
| Author | andrewchmr |
| Repository | andrewchmr/mxprobe |
| Popularity | 2 GitHub stars |
| Category | Communication |
| Security | Review before installing (72/100) |
| Rank | #2,771 of 4,418 MCP servers; #158 in Communication |
| License | MIT |
| Last commit | 2026-09-23 |
| Runs | Locally and in the cloud |
| Language | TypeScript |
| Platforms | macOS, Windows, Linux |
Is mxprobe safe to install?
mxprobe scores 72/100 on the MCPMods security check: Review before installing. Things to review: sends your data to a cloud service; can take actions such as send, write or deploy. It passed 3 of 6 checks.
MCP server results come from listing signals: who publishes it, where your data goes and what it can do. The code itself is not scanned yet.
| Check | Result |
|---|---|
| Community-built server | Note |
| Sends your data to a cloud service | Review |
| No credentials mentioned | Pass |
| Can take actions such as send, write or deploy | Review |
| No code execution | Pass |
| Source on GitHub | Pass |
How do I install mxprobe?
- Find the launch command. The README says how the server starts (npx, uvx, docker or a remote URL) and which API keys it needs.
https://github.com/andrewchmr/mxprobe
- Add it to Claude Code. Replace the part after -- with the command from the README. Remote servers use --transport http with a URL.
claude mcp add mxprobe -- <command from README> claude mcp add --transport http mxprobe <server-url>
- Check it connected. This lists your MCP servers and their status.
claude mcp list
Or ask Claude to set it up
Paste this into Claude Code and it installs mxprobe for you:
Add the "mxprobe" MCP server from https://github.com/andrewchmr/mxprobe to Claude Code. Read its README for the launch command and any API keys I need, run claude mcp add, then check that it connects.