io.github.ni-c/smtp-mcp
SMTP
Is the SMTP MCP server down? Yes. It has given no valid answer since 2026-10-20: crashed on start.
MCP server that sends mail over SMTP, gated behind an allowlist and a human confirmation
crashed on start down since 2026-10-20 · probed 2026-11-15 · unchanged since 2026-10-27
MCP error -32000: Connection closed smtp-mcp: SMTP_TLS must be one of starttls, implicit or none
- Run it
- npx -y @ni-c/smtp-mcp@0.2.0 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Repository
- https://github.com/ni-c/smtp-mcp
- Website
- https://smtp-mcp.ni-c.de
- Registry
- active, updated 2026-09-07 · registry entry
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Servers that mention smtp.
- Agent Email List — Free SMTP Relay for AI Agents com.agentemaillist.ai/free-transactional-email-smtp-relay · alive
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- com.securessmtp/securessmtp · needs auth
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- Checkmails — Email Verification eu.checkmails/checkmails · needs auth
- Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun io.github.CyberMax-tools/send-email · needs auth
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- No valid answer since 2026-10-20, in every probe since then.
- The process exited on start before it answered initialize. The error output is above.