Free DMARC/SPF/MX Checker Tools Listing
A promotional listing for free email-authentication (DMARC, SPF, MX) record checkers offered as a lead-generation funnel for an existing email-scoring API, not a stated user problem.
Signal
Visibility
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Similar Problems
surfaced semanticallyFree email, DNS, and security scanner suite
Nine free client-side web tools for domain/email security diagnostics including SPF/DKIM/DMARC, blacklist checks, and SEO scanning. A product launch rather than an unsolved problem in a space with existing tooling.
Senders Lack Quick Visibility Into Domain Blacklist and Deliverability Status
Email senders often do not know whether their sending domain has been blacklisted or is misconfigured for authentication until deliverability problems already occur. A free instant-check tool addresses the gap of needing to piece together blacklist and DNS configuration status from multiple sources.
CaptainDNS DNS Diagnostics and Email Security Audit Tool Product Launch
Product launch for a free DNS zone diagnostics tool with email security record auditing. Not a user-expressed problem statement.
Protecta360 Ad for a Free DMARC/SPF/DKIM Checker Tool
This entry promotes an existing free tool that checks a domain's DMARC, SPF, and DKIM records for email spoofing exposure. It does not describe a user-reported problem.
Email Deliverability Testing Costs Too Much for Small Senders
Senders pay consultants or costly tools to learn whether email lands in inbox or spam. The post frames deliverability and SPF/DKIM/DMARC checks as a costly diagnostic gap.
Problem descriptions, scores, analysis, and solution blueprints may be updated as new community data becomes available.