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Email Deliverability & DNS Auth Checker — Bulk MX / SPF / DMARC / DKIM

Check a whole list of domains for email setup and authentication in one run — entirely over DNS, so it's fast, never blocked, and low-maintenance. One JSON row per domain with a deliverability score and verdict.

Great for email-list hygiene, deliverability audits, lead-list scoring, and security posture checks across many domains at once.

What you get per domain

Input

{"domains":["stripe.com","user@acme.com","https://globex.com"],"dkimSelectors":["google","default","selector1","k1"]}

Email addresses and URLs are reduced to the domain. Leave domains empty to run the built-in sample.

Output (one item per domain)

{
"domain":"github.com",
"has_mx":true,
"mx_provider":"Google Workspace",
"spf_found":true,"spf_qualifier":"~all",
"dmarc_found":true,"dmarc_policy":"reject",
"dkim_selectors_found":["google"],
"auth_score":"5/5","verdict":"strong",
"looks_disposable":false
}

Export as JSON/CSV/Excel or pull via the Apify API.

Why DNS-only

It reads MX, SPF/TXT, _dmarc, and <selector>._domainkey records — no SMTP probing (which mail servers block) and no scraping. That makes results stable and the Actor low-maintenance. Note: it verifies a domain's email authentication setup, not whether a specific mailbox exists.

Pricing

Pay per result: $0.01 per domain checked. No rental, no subscription.

Pairs with

• Domain Intelligence — DNS/WHOIS/SSL
• Website Metadata & Tech Profiler — HTTP metadata + tech + security headers

Apache-2.0 · by weiseer