com.themailx/email-deliverability

Tools

• audit_domain

  Use this when the user asks why their emails go to spam or wants a full deliverability check of a domain. Runs SPF, DKIM (finds the selector on its own), DMARC, blacklist and MX checks in one call and returns pass, warning or fail for each, an overall result, and the fixes to apply in priority order with help links. Takes about 10 seconds. mailX never changes DNS.

  shallow
• bimi_check

  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.

  shallow
• blacklist_check

  Check if a domain or IP address is listed in popular email blacklists (DNSBLs). Being blacklisted can severely impact email deliverability.

  shallow
• cname_lookup

  Look up CNAME (Canonical Name) records for a domain. Shows where a hostname aliases to.

  shallow
• dkim_check

  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.

  shallow
• dmarc_check

  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.

  shallow
• dmarc_generate

  Generate a DMARC DNS record for a domain. Returns the record name, value, and type ready to be added to DNS.

  shallow
• dns_lookup

  Look up all DNS records for a domain in one query. Returns A, AAAA, CNAME, MX, NS, TXT, and SOA records.

  shallow
• imap_check

  Test an IMAP server connection by attempting to connect and authenticate. Use this to verify email receiving configuration.

  shallow
• imap_finder

  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.

  shallow
• mx_lookup

  Look up MX (Mail Exchanger) records for a domain. Returns the mail servers and their priorities.

  shallow
• ptr_lookup

  Reverse DNS lookup. Find the hostname associated with an IP address. A valid PTR record is important for email sending reputation.

  shallow
• smtp_check

  Test an SMTP server connection by attempting to connect and authenticate. If from_email and to_email are provided, the tool may attempt to send a test email. Only provide these fields if you are authorized to send from the account and intentionally want to test full sending capability.

  shallow
• smtp_finder

  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.

  shallow
• spf_check

  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.

  shallow
• spf_generate

  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.

  shallow
• txt_lookup

  Look up all TXT records for a domain. TXT records contain SPF policies, domain verification tokens, DKIM keys, and other metadata.

  shallow

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Tool count and median score across every tool in this server’s corpus — honest in a way a single cherry-picked tool’s badge wouldn’t be.

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