Summary
One tool, one job: put a message in the outbox.
There is no mailbox access and nothing to read — it sends and stops, which is the honest scope for a server whose only credential is an SMTP login. Everything it sends carries your own address, so treat those credentials the way you would treat any app password.
What it is
A single-tool server: send_email hands a message to an SMTP server through nodemailer and reports the result.
What you get
- One call sends a message with a recipient, a subject and a plain-text body
- An HTML body can be supplied alongside the text version for clients that render it
- Delivery goes through whichever SMTP host you configure, so the mail comes from your own address
- It speaks stdio, so a desktop client can start and stop it as a child process
Requirements
An SMTP account — host, username and password, with the port and TLS setting matched to your provider. The sender address defaults to the account you authenticate as. Runs on Node.
Setup effort
One command plus a key — npx -y email-mcp, then supply credentials