Pricing

from $5.00 / 1,000 input checkeds

Email & Domain Auth Checker: MX, SPF, DKIM & DMARC

Checks an email or domain's deliverability signals from DNS alone: MX, SPF, DKIM, DMARC, plus disposable and role-address flags. No SMTP, no mailbox ping. It reports auth-record posture, not mailbox existence. $0.005 per input checked.

Pricing

from $5.00 / 1,000 input checkeds

Rating

0.0

(0)

Developer

Howth Technology Factory

Actor stats

Bookmarked

Total users

Monthly active users

4 hours ago

Last modified

Bulk Email Deliverability Checker (MX/SPF/DMARC/DKIM)

weiseer/email-deliverability-checker

Bulk-check domains for email setup & authentication over DNS: MX + provider, SPF, DMARC policy, DKIM selectors, with a deliverability score. One JSON row per domain.

wei seer

Public Email Auth DNS Readiness Agent

jacksu/public-email-auth-dns-readiness-agent

Check public email authentication DNS readiness for domains: MX, SPF, DMARC, DKIM selectors, BIMI, MTA-STS, TLS-RPT, risk labels, stable hashes, and useful-result pricing.

jack su

Cybersecurity MCP — CVEs, CISA KEV & SSL for AI Agents

nexgendata/cybersecurity-mcp-server

MCP server exposing CVE search, CISA KEV, dependency advisories and SSL checks as agent tools. Connect Claude, Cursor, n8n or the OpenAI Agents SDK.

NexGenData

Bulk Email Verifier & Finder - Mailbox Exists, SPF/DKIM/DMARC

apivault_labs/email-deliverability-checker

Bulk email verifier & finder: live mailbox check (accepted/rejected/catch-all), SPF/DKIM/DMARC, spam-trap & blacklist, typo fix, find emails by name+company. Pay only for definitive results.

Apivault Labs

Bulk DNS & Domain Checker — Records, WHOIS & Expiry

haketa/bulk-dns-checker

Check thousands of domains at once: A/AAAA/MX/TXT/NS records, SPF/DMARC/DKIM, mail provider, registrar, creation & expiry dates, nameservers and DNSSEC. Fast, cheap, keyless DNS & domain lookup for IT, security and domain portfolios.

Haketa

Email Deliverability Checker

blackfalcondata/email-deliverability-checker

Bulk email deliverability audit: SPF, DMARC, DKIM and DNSSEC records, MX configuration and domain blacklist status for every sending domain, rolled into an A-F inbox-readiness grade with a 0-100 score and incremental drift monitoring. $1 per 1,000 domains.

Black Falcon Data

DNS, WHOIS, SPF/DMARC, SSL Domain Audit

jungle_synthesizer/dns-domain-audit

Bulk domain audit covering DNS records, WHOIS registration, SPF/DMARC/DKIM email auth, SSL certificate, and reverse DNS. No browser, no proxy -- pure Node, sub-second per domain.

BowTiedRaccoon

DMARC & Email Security Checker

taroyamada/dns-dmarc-security-checker

Validate domain infrastructure in bulk to boost email deliverability. Extract DMARC policies, SPF records, and MX configurations to keep outreach out of spam.

naoki anzai

📧 Email Verifier & Bulk Validator — MX, SMTP, Catch-All

inexhaustible_glass/email-verifier

Verify emails in bulk without sending mail: syntax, MX, SMTP mailbox probe, catch-all, disposable, role, free & SPF/DMARC/DKIM. Get deliverable/undeliverable/risky verdict + 0-100 score. Clean your lead list before you send. No API key.

Hitman studio

Domain Security & Email Deliverability — DNS, SPF, DMARC, DKIM

ryanclinton/dns-record-lookup

Audit a domain portfolio for email spoofing, broken SPF, DMARC enforcement, DNSSEC and shadow-SaaS senders. Returns a posture score, what to fix first, vendor dependencies and drift alerts — not just records. Bulk DNS / SPF / DMARC / DKIM lookup, no API keys.