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Email Domain Checker — SPF, DKIM, DMARC & DNS Health
Check a domain's public MX, SPF, DKIM, DMARC, and MTA-STS DNS records. Get clear findings without sending email or probing a mailbox.
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89 % |
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SMTPDoctor — Free Email Deliverability & DNS Diagnostic Tools
Free SPF, DKIM, DMARC, DNS, and email security diagnostics. Check deliverability, find misconfigurations, and fix email problems in seconds — no signup requi...
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89 % |
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DNS Mail Secure - DNS Tools and Email Verification
DNS Mail Secure provides professional DNS tools and email verification. Analyze DNS records, verify SPF, DKIM, DMARC configurations, check blacklists, scan p...
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89 % |
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DNSTrustCheck - Free DNS, SPF, DKIM, DMARC & Blacklist Lookup
Free DNS and email deliverability checker. Run MX, SPF, DKIM, DMARC, BIMI, blacklist, WHOIS and DNSSEC lookups, get a weighted health score, and export an au...
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89 % |
|
SkullCheck - DNS, SPF, DKIM, DMARC & Email Security Tools
Free DNS and email security tools for SPF, DKIM, DMARC, MX, email headers, MTA-STS, TLS-RPT, DNSSEC, SSL/TLS and domain diagnostics.
|
88 % |
|
Sendvery — Email Health & Deliverability Monitoring
DMARC monitoring with AI-powered insights. Automatically parse DMARC reports, monitor DNS health, and get plain-English explanations. Open source, self-hosta...
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87 % |
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Domain Health & Security Monitoring | CloudSpex
Monitor DNS, SSL, email security, uptime, redirects and domain risks with clear root-cause findings and actionable remediation guidance.
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87 % |
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IntoDNS.AI — DNS & Mail Server Checker (SPF, DKIM, DMARC, DNSSEC)
Check DNS and mail server health in one report: SPF, DKIM, DMARC, DNSSEC, MTA-STS, BIMI, blacklists. Free, no signup. Not affiliated with intodns.com.
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87 % |
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Harmonix — MX, TXT & Email DNS Record Lookup
Inspect email DNS with Harmonix. Look up MX and SPF text, query DKIM selectors and DMARC names, and export records as TXT or CSV with a raw JSON view.
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87 % |
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MXMole | Email DNS checker
MXMole checks a domain's email DNS configuration — fast, free, and without an account.
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87 % |
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MailAegis — Free SPF, DKIM & DMARC Checker + Twice-Daily Email DNS Monitoring
Scan your domain's SPF, DKIM, DMARC, and MX records for free — no signup needed. Paid MailAegis plans monitor your email DNS twice daily and alert you to reg...
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86 % |
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dmarcheck — DNS Email Security Analyzer
Free, open-source DNS email security analyzer. Check DMARC, SPF, DKIM, BIMI, MTA-STS, and more for any domain.
|
86 % |
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Email Troubleshooter: Test SPF, DMARC, DKIM and more!
Send an email to a disposable address and instantly see whether SPF, DKIM, DMARC, and PTR pass or fail. Free, instant, no account needed.
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86 % |
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DNS & Email Health Scanner | InboxDNS
Scan DNS, MX, SPF, DKIM, DMARC, TLS, DNSSEC, sender readiness, and website health before issues hurt delivery.
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86 % |
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xteam — Free Security Tools for NZ Businesses
Free cybersecurity tools for New Zealand businesses — email security checks, SPF, DKIM, DMARC, blacklists and practical security guides. Instant results, no...
|
85 % |
|
ReaperCloud — Email Security Solutions
Email authentication, business email compromise detection, phishing defence and security auditing — so your people can trust what lands in their inbox.
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85 % |
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MyDCHub — find out why your mail is going to spam
Free SPF, DKIM, DMARC, MX and transport-security checks. Every finding explains what is wrong, why it matters and how to fix it.
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85 % |
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Free DMARC, SPF, DKIM & DNS Checker | MXToolbox.eu
Free email security tools: check SPF records, DKIM signatures, DMARC policies, MX records, DNS lookup, blacklist status. Built for sysadmins & email admins.
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85 % |
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Zone-X - Professional DNS Diagnostics
Free DNS diagnostic tool with global propagation checks, nameserver comparison, SSL validation, DNSSEC verification, and email security analysis.
|
85 % |
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DNS Doctors | DNS Monitoring, Deliverability & Security
Continuous DNS monitoring and audits for email deliverability and domain security. Fix SPF, DKIM, DMARC issues and reduce attack surface.
|
85 % |
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