MCP server that sends mail over SMTP, gated behind an allowlist and a human confirmation
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io.github.ni-c/smtp-mcp is an MCP server that MCP server that sends mail over SMTP, gated behind an allowlist and a human confirmation. Its tool list has not been published yet over stdio, sse and http, requires no API key, and scores 61/100 on MCPpedia's security, maintenance and efficiency rubric.
Config is the same across clients - only the file and path differ.
{
"mcpServers": {
"smtp": {
"env": {
"SMTP_FROM": "Your Name <person@example.net>",
"SMTP_HOST": "smtp.example.net",
"SMTP_USER": "person@example.net",
"SMTP_PASSWORD": "app-specific-password",
"SMTP_ALLOW_SEND": "true",
"SMTP_ALLOWED_RECIPIENTS": "@example.net"
},
"args": [
"-y",
"@ni-c/smtp-mcp"
],
"command": "npx"
}
}
}Are you the author?
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MCP server that sends mail over SMTP, gated behind an allowlist and a human confirmation
Run this in your terminal to verify the server starts. Then let us know if it worked - your result helps other developers.
npx -y '@ni-c/smtp-mcp' 2>&1 | head -1 && echo "✓ Server started successfully"
After testing, let us know if it worked:
Five weighted categories - click any category to see the underlying evidence.
No known CVEs.
Checked @ni-c/smtp-mcp against OSV.dev.
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