Domain Deliverability Checker

This server gives an AI client one tool:

- check_domain_deliverability: audit a domain's SPF, DKIM, DMARC, MX, mail provider, DNS blacklist status, catch-all, domain age, and a 0 to 100 deliverability score.

All of the work runs on Apify. This package is a thin client that routes the tool call to the actor and hands back the result.

You need Node.js 18 or newer and an Apify account with an API token.

- Node.js 18 or newer
- An Apify account with an API token

- "Check the email deliverability of stripe.com."
- "Does github.com have SPF, DKIM, and DMARC set up, and what is its DMARC policy?"
- "Audit these domains for deliverability: stripe.com, notion.so, figma.com."
- "Is acme.com on any DNS blacklist, and what is its mail provider?"

- domain(string): bare domain to audit, e.g. stripe.com. Provide this ordomains.
- domains(array): list of bare domains for batch processing. Takes precedence overdomain.
- batchSize(number): domains audited concurrently per wave in batch mode. Default 5, maximum 10.
- skipCache(boolean): force a fresh audit and ignore the 24 hour result cache.
- attempt_catch_all(boolean): run the SMTP catch-all probe. Off by default; the Apify platform blocks port 25, so it returns unknown there.

For the complete input and output reference, pricing, and run history, see the Domain Deliverability Checker actor on the Apify Store (canonical immutable Actor ID URL):

This server is part of theMamba Labs GTM Suite, a fleet of twelve specialized MCP servers for go-to-market signal intelligence, each backed by a dedicated Apify actor.

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