EmailSheriff is an independent, free email health toolkit built from Chennai, India. No investors. No ads. No agenda. Just useful tools.
Every marketer, developer, and business owner who sends email has dealt with the same frustration: a bad email list. Addresses that bounce, spam traps that kill your sender reputation, temporary aliases from people who never wanted to hear from you.
The good tools that solve this — ZeroBounce, NeverBounce, EmailListVerify — are excellent but expensive. The free tools are scattered across dozens of different sites, each doing one small thing. EmailSheriff exists to fix both problems: bring everything under one roof, and keep it free.
This is a solo project, built one tool at a time, with no shortcuts on quality. Every feature is tested carefully before release. The goal is simple: be the most useful free email health resource on the internet.
All core tools will always be free. No credit system, no daily limits, no signup required.
We never store the emails you validate. Your data stays yours — that's non-negotiable.
Every tool solves a real problem. No bloat, no dark patterns, no upsell traps.
We explain what each check does and why. No black-box results, no unexplained scores.
We're building all 10 tools one at a time. Here's what's coming:
12 RFC 5321 checks. Live now.
2,000+ temp domain database. Coming soon.
DNS lookup for any domain. Coming soon.
Keyword trap detection. Coming soon.
Spamhaus, Barracuda, SORBS. Coming soon.
Live mailbox existence check. Coming soon.
Authentication record checker. Coming soon.
CSV upload and batch validation. Coming soon.
Diagnose delivery issues. Coming soon.
Identify catch-all domains. Coming soon.
Found a bug? Have a suggestion? Want to say hello? We'd genuinely love to hear from you.
Contact us