Official MCP server for MailX email deliverability tools — SPF, DKIM, DMARC, BIMI validation, domain/IP blacklist checks, SMTP/IMAP connectivity tests, DNS lookups (MX, TXT, CNAME, PTR, full…
Mailx Tools is an MCP project maintained in the mailwarm/mailx-mcp repository. The maintainer describes its purpose as “Official MCP server for MailX email deliverability tools — SPF, DKIM, DMARC, BIMI validation, domain/IP blacklist checks, SMTP/IMAP connectivity tests, DNS lookups (MX, TXT, CNAME…”. Read the project documentation for the complete scope.
The documented npm package is @mailwarm/mailx-mcp. The configuration below comes from the maintainer’s example; adapt its paths and account values to your environment.
Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.
Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| blacklist_check | check a domain or IP against popular DNSBLs |
| bimi_host | host a BIMI SVG for email authentication |
{
"mcpServers": {
"mailx": {
"command": "npx",
"args": [
"-y",
"@mailwarm/mailx-mcp"
]
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
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