MailShield
Monitor and secure your e-mail domains
2 followers
Monitor and secure your e-mail domains
2 followers
Most organizations have no idea when their emails land in spam, get rejected, or are spoofed by attackers. MailShield gives you complete visibility and clear steps to fix what's broken.













Hey Product Hunt! I'm Nick, the maker of MailShield.
I built this because DMARC reports are generally useful, but without the right tool, it is just a blob of text. I tried multiple tools (both paid and open-source) but they were either slow, bombared you with information or were very expensive.
MailShield monitors all aspects of e-mail authentication and deliverability (such as SPF, DKIM, DMARC, MTA-STS, TLS-RPT, BIMI, DNSSEC, and DANE) continuously. It processes your DMARC reports automatically, gives you a single security score, and tells
you exactly what to fix with ready-to-use DNS records.
Quick explainer for anyone unfamiliar 👇
DMARC is a standard that helps prevent email spoofing and phishing.
It lets domain owners tell receiving mail servers how to verify messages (using SPF and DKIM) and what to do if a message fails those checks.
It also generates DMARC reports, which show who is sending email on your behalf and whether those messages pass authentication.
The problem: those reports are huge XML files that are almost impossible to read manually.
That’s exactly what MailShield turns into clear insights and fixes.
What makes it different:
- Covers all email authentication protocols, not just DMARC
- Actionable guidance, not just alerts
- Free tier with 2 domains, no credit card
I'd love your feedback. Happy to answer any questions!