WarmInboxes Free Deliverability Tools

Ingested from the official MCP Registry

FastDrop pulled this entry from the official MCP Registry as com.warminboxes/deliverability-tools and probed the endpoint. The maker did not submit it, so the outbound link is not endorsed and the description is not theirs.

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Tools this endpoint exposes

Read directly from the endpoint on 22 Oct 2026. Not supplied by the maker.

• check_deliverability

  Grade a domain A-F for cold email readiness. Checks SPF, DKIM, DMARC, MX, blacklists and domain age together and returns a weighted score with a per-check breakdown and what to fix. Start here for ope

• check_spf

  Look up a domain's SPF record and validate it, including the recursive DNS lookup count that silently breaks SPF past 10.

• check_dkim

  Find and validate a domain's DKIM signing key, including key strength. Leave selector empty to auto-scan 26 common selectors (google, selector1, k1, and the rest). When no key is found, reports whethe

• check_dmarc

  Look up and parse a domain's DMARC record: policy, subdomain policy, percentage, alignment and reporting tags, each explained. p=none (monitoring) passes: it meets Google and Yahoo's requirement and i

• check_bimi

  Validate a domain's BIMI record, the logo SVG, the VMC, and the DMARC enforcement level Gmail requires before it will show a brand logo.

• check_mta_sts

  Validate a domain's _mta-sts DNS record and its published policy file: mode, MX patterns, max_age and TLS-RPT.

• check_ssl

  Read a host's TLS certificate: issuer, validity dates and days remaining, subject alternative names, key type and size, signature algorithm, chain, negotiated protocol and whether the chain is trusted

• check_dns

  Query any DNS record type for a domain: MX, TXT, A, AAAA, CNAME, NS, SOA, CAA.