MailRisk

MailRisk is a free email deliverability scanner for checking a domain’s authentication setup before messages are sent. It examines SPF, DKIM, DMARC, and MX records so users can see what is configured and what is missing before email reaches spam folders.

The service starts by having a user enter a sending domain, including domains used for cold email. It then looks up DNS records and validates them against email best practices. MailRisk returns a risk score and a clear breakdown of what is configured correctly and what needs attention. The page also describes the specific records it checks: SPF identifies which servers are authorized to send for a domain, DKIM adds a cryptographic signature to prove messages have not been tampered with, DMARC tells receiving servers what to do with unauthenticated email, and MX records point to the servers responsible for receiving mail for the domain.

MailRisk is aimed at SDRs and cold outreach teams, email marketers, agencies and consultants, and IT and DevOps teams. The examples given include verifying sending domains before campaigns, checking SPF/DKIM/DMARC alignment for newsletters and promotions, auditing client domains, and confirming DNS records during setup or migration of email infrastructure. The page also says it works with Gmail, Outlook, Yahoo, Zoho, iCloud, and all providers.

The basic scanner is completely free and requires no signup. Premium features are mentioned for users who need deeper analysis, including detailed fix instructions and provider-specific verdicts. The page says more than 5,000 domains have been scanned.