{"mcp":{"name":"mailx-deliverability","version":"1.0.0","protocol_version":"2025-11-25","endpoint":"\/mcp","transport":"streamable-http","description":"Email deliverability tools for AI agents. Check SPF, DKIM, DMARC, BIMI, blacklists, SMTP\/IMAP connectivity, and generate DNS records.","tools":[{"name":"spf-check","description":"Check if a domain has a valid SPF (Sender Policy Framework) DNS record. SPF specifies which mail servers are authorized to send email on behalf of a domain."},{"name":"dkim-check","description":"Check if a domain has a valid DKIM (DomainKeys Identified Mail) DNS record for a given selector. DKIM allows the receiver to verify that an email was sent by the domain owner."},{"name":"dmarc-check","description":"Check if a domain has a valid DMARC (Domain-based Message Authentication, Reporting & Conformance) DNS record. DMARC tells receiving servers what to do with emails that fail SPF or DKIM checks."},{"name":"bimi-check","description":"Check if a domain has a valid BIMI (Brand Indicators for Message Identification) DNS record. BIMI allows brands to display their logo next to authenticated emails in supporting email clients."},{"name":"dmarc-generate","description":"Generate a DMARC DNS record for a domain. Returns the record name, value, and type ready to be added to DNS."},{"name":"spf-generate","description":"Generate an SPF DNS record for a domain based on the email provider being used. Returns the record name, value, and type ready to be added to DNS."},{"name":"smtp-check","description":"Test an SMTP server connection by attempting to connect and authenticate. Optionally sends a test email to verify full sending capability."},{"name":"imap-check","description":"Test an IMAP server connection by attempting to connect and authenticate. Use this to verify email receiving configuration."},{"name":"smtp-finder","description":"Look up SMTP server settings (host, port, encryption) for a given email provider. Use this to find the correct SMTP configuration for services like Gmail, Outlook, SendGrid, etc."},{"name":"imap-finder","description":"Look up IMAP server settings (host, port, encryption) for a given email provider. Use this to find the correct IMAP configuration for services like Gmail, Outlook, Yahoo, etc."},{"name":"blacklist-check","description":"Check if a domain or IP address is listed in popular email blacklists (DNSBLs). Being blacklisted can severely impact email deliverability."},{"name":"bimi-host","description":"Host and serve your BIMI SVG file for email authentication"},{"name":"mx-lookup","description":"Look up MX (Mail Exchanger) records for a domain. Returns the mail servers and their priorities."},{"name":"txt-lookup","description":"Look up all TXT records for a domain. TXT records contain SPF policies, domain verification tokens, DKIM keys, and other metadata."},{"name":"cname-lookup","description":"Look up CNAME (Canonical Name) records for a domain. Shows where a hostname aliases to."},{"name":"ptr-lookup","description":"Reverse DNS lookup. Find the hostname associated with an IP address. A valid PTR record is important for email sending reputation."},{"name":"dns-lookup","description":"Look up all DNS records for a domain in one query. Returns A, AAAA, CNAME, MX, NS, TXT, and SOA records."}],"skills":[{"name":"email-deliverability","url":"https:\/\/themailx.com\/skills\/email-deliverability\/SKILL.md","index":"https:\/\/themailx.com\/.well-known\/skills.json"}]}}