--- title: "Free Email Security Tools | Phish Protection" description: "Free DNS lookup tools for email authentication. Check SPF records, validate DMARC policies, evaluate domain security, and calculate BEC risk - all in one place." image: "https://phishprotection.com/images/og-default.png" canonical: "https://phishprotection.com/tools/" --- 100% Free - No Account Required # Free Email SecurityTools Check SPF, DMARC, and domain authentication records for any domain. Calculate your BEC risk. Instant results, no signup. [ Most Popular Domain Security Evaluator Check all 5 email authentication protocols at once - SPF, DMARC, BIMI, MTA-STS, and TLS-RPT. Get an overall security score for your domain. Check now ](/tools/domain-auth-checker/)[ SPF Record Checker Analyze your SPF record, count DNS lookups, and visualize the full include tree. See if you're over the 10-lookup limit. Check now ](/tools/spf-checker/)[ DMARC Record Checker Validate your DMARC policy, check alignment settings, and see if aggregate reporting is configured correctly. Check now ](/tools/dmarc-checker/)[ New DMARC Report Analyzer Drop a DMARC aggregate report (XML or .gz) and instantly see senders, pass rates, alignment, and per-record details. Parsed in your browser. Check now ](/tools/dmarc-report-analyzer/)[ BEC Cost Calculator Estimate your annual risk from Business Email Compromise attacks and see the ROI of phishing protection based on your company size and industry. Check now ](/tools/bec-calculator/)[ New Pricing Calculator Get an instant monthly estimate based on your mailbox count, shared mailboxes, and additional domains. Volume discounts for 250+ users. Check now ](/tools/pricing-calculator/)[ New Email Header Analyzer Paste raw email headers and instantly see the full delivery path with per-hop time delays, plus SPF, DKIM, and DMARC results. Hosted on Mailflow Monitoring. Check now ](https://mailflowmonitoring.com/tools/email-header-analyzer/?utm%5Fsource=phishprotection&utm%5Fmedium=tools%5Fdirectory) ## What These Tools Check SPF TXT @ domain Which servers can send email as your domain DMARC TXT @ \_dmarc.domain What to do when SPF or DKIM fails BIMI TXT @ default.\_bimi.domain Brand logo display in email clients MTA-STS TXT @ \_mta-sts.domain + policy file Force TLS encryption for inbound email TLS-RPT TXT @ \_smtp.\_tls.domain Report TLS connection failures BEC Risk Industry data + employee count Estimated annual Business Email Compromise cost ## Need More Than a Free Check? ### Too many DNS lookups? AutoSPF automatically flattens your SPF record to stay under the 10-lookup limit. No manual maintenance required. [Learn more at autospf.com →](https://autospf.com) ### Need DMARC monitoring? DMARC Report turns raw XML aggregate reports into actionable dashboards so you can track authentication across all your domains. [Learn more at dmarcreport.com →](https://dmarcreport.com) ## Protect your inbox from phishing attacks Phish Protection blocks phishing, ransomware, and BEC attacks before they reach your employees. 60-day free trial, no credit card required. [Start Free Trial](https://portal.duocircle.com/cart.php?a=add&pid=101&brand=phishprotection) ```json {"@context":"https://schema.org","@type":"Organization","name":"Phish Protection","url":"https://phishprotection.com","logo":{"@type":"ImageObject","url":"https://phishprotection.com/images/phishprotection-logo.png"},"description":"Advanced phishing protection and email security for businesses. Real-time threat defense, time-of-click protection, and seamless Office 365 integration.","parentOrganization":{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138883901","name":"DuoCircle LLC","url":"https://www.duocircle.com","sameAs":["https://www.wikidata.org/wiki/Q138883901","https://www.crunchbase.com/organization/duocircle-llc","https://www.linkedin.com/company/duocircle","https://github.com/duocircle"],"subOrganization":[{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138898167","name":"DMARC Report","url":"https://dmarcreport.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897474","name":"AutoSPF","url":"https://autospf.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897912","name":"Phish Protection","url":"https://www.phishprotection.com"}]},"sameAs":["https://www.linkedin.com/company/duocircle","https://x.com/duocirclellc","https://www.facebook.com/duocirclellc","https://github.com/duocircle"],"aggregateRating":{"@type":"AggregateRating","ratingValue":"4.8","reviewCount":"21","bestRating":"5","worstRating":"1","url":"https://www.g2.com/products/phish-protection/reviews"},"contactPoint":{"@type":"ContactPoint","contactType":"customer support","url":"https://phishprotection.com/contact/"},"knowsAbout":["Phishing Protection","Email Security","Anti-Phishing","Business Email Compromise","Ransomware Protection","Time of Click Protection","Office 365 Email Security","Advanced Threat Defense"]} ``` ```json {"@context":"https://schema.org","@type":"WebSite","name":"Phish Protection","url":"https://phishprotection.com","description":"Advanced phishing protection and email security for businesses. Real-time threat defense, time-of-click protection, and seamless Office 365 integration.","publisher":{"@type":"Organization","name":"Phish Protection","url":"https://phishprotection.com","logo":{"@type":"ImageObject","url":"https://phishprotection.com/images/phishprotection-logo.png"},"description":"Advanced phishing protection and email security for businesses. Real-time threat defense, time-of-click protection, and seamless Office 365 integration.","parentOrganization":{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138883901","name":"DuoCircle LLC","url":"https://www.duocircle.com","sameAs":["https://www.wikidata.org/wiki/Q138883901","https://www.crunchbase.com/organization/duocircle-llc","https://www.linkedin.com/company/duocircle","https://github.com/duocircle"],"subOrganization":[{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138898167","name":"DMARC Report","url":"https://dmarcreport.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897474","name":"AutoSPF","url":"https://autospf.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897912","name":"Phish Protection","url":"https://www.phishprotection.com"}]}}} ``` ```json {"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"Are these email security tools free?","acceptedAnswer":{"@type":"Answer","text":"Yes. All DNS lookup and validation tools on this page are completely free to use with no account required. Check SPF, DMARC, and domain authentication records for any domain instantly."}},{"@type":"Question","name":"What is the Domain Security Evaluator?","acceptedAnswer":{"@type":"Answer","text":"The Domain Security Evaluator tests all 5 email authentication protocols (SPF, DMARC, BIMI, MTA-STS, TLS-RPT) for any domain in a single lookup. It gives you an overall score and specific insights for each protocol."}},{"@type":"Question","name":"How does the BEC Cost Calculator work?","acceptedAnswer":{"@type":"Answer","text":"The BEC Cost Calculator estimates your organization's annual risk from Business Email Compromise attacks based on employee count, salary, and industry. It uses FBI IC3 data to project expected losses and shows the ROI of Phish Protection."}}]} ``` ```json {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://phishprotection.com/"},{"@type":"ListItem","position":2,"name":"Tools","item":"https://phishprotection.com/tools/"}]} ```