// MCP TOOL REFERENCE

MAILX TOOLS TOOLS

16 tools from the Mailx Tools MCP Server, categorised by risk level.

View the Mailx Tools policy → Token cost: 1,616 tokens →

// ALL 16 MAILX TOOLS TOOLS

READ 14 tools

Read bimi_check Check if a domain has a valid BIMI (Brand Indicators for Message Identification) DNS record. BIMI allows br... Read blacklist_check Check if a domain or IP address is listed in popular email blacklists (DNSBLs). Being blacklisted can sever... Read cname_lookup Look up CNAME (Canonical Name) records for a domain. Shows where a hostname aliases to. Read dkim_check Check if a domain has a valid DKIM (DomainKeys Identified Mail) DNS record for a given selector. DKIM allow... Read dmarc_check Check if a domain has a valid DMARC (Domain-based Message Authentication, Reporting & Conformance) DNS reco... Read dns_lookup Look up all DNS records for a domain in one query. Returns A, AAAA, CNAME, MX, NS, TXT, and SOA records. Read imap_check Test an IMAP server connection by attempting to connect and authenticate. Use this to verify email receivin... Read imap_finder Look up IMAP server settings (host, port, encryption) for a given email provider. Use this to find the corr... Read mx_lookup Look up MX (Mail Exchanger) records for a domain. Returns the mail servers and their priorities. Read ptr_lookup Reverse DNS lookup. Find the hostname associated with an IP address. A valid PTR record is important for em... Read smtp_check Test an SMTP server connection by attempting to connect and authenticate. Optionally sends a test email to ... Read smtp_finder Look up SMTP server settings (host, port, encryption) for a given email provider. Use this to find the corr... Read spf_check Check if a domain has a valid SPF (Sender Policy Framework) DNS record. SPF specifies which mail servers ar... Read txt_lookup Look up all TXT records for a domain. TXT records contain SPF policies, domain verification tokens, DKIM ke...

WRITE 2 tools

Write dmarc_generate Generate a DMARC DNS record for a domain. Returns the record name, value, and type ready to be added to DNS. Write spf_generate Generate an SPF DNS record for a domain based on the email provider being used. Returns the record name, va...

// FAQ

How many tools does the Mailx Tools MCP server have? +

The Mailx Tools MCP server exposes 16 tools across 2 categories: Read, Write.

How do I enforce policies on Mailx Tools tools? +

Route the Mailx Tools server through the PolicyLayer gateway. Define allow, deny, or approval rules per tool in the dashboard — they are enforced on every call before it reaches the server.

What risk categories do Mailx Tools tools fall into? +

Mailx Tools tools are categorised as Read (14), Write (2). Each category has a recommended default policy.

Let agents act without letting them run wild.

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