Clean list. Better inbox. Six free tools covering everything your email list needs — syntax, disposable detection, typo fixing, spam scanning, blacklists and more.
Every tool you need to keep your email list clean and your sender reputation intact.
The core tool. Type one email, paste a list, or upload a CSV. Checks syntax, disposable domains, typos, role-based addresses and free providers — all in one shot with a health score per address.
Paste your email subject line or body text and scan it against 500+ known spam trigger keywords that cause Gmail, Outlook and Yahoo to flag or block your message before it reaches the inbox.
Look up the MX, SPF, DKIM and DMARC DNS records for any domain. Verify the domain can actually receive email and that your authentication records are correctly configured.
Check if your sending domain or IP address has been listed on any major email blacklist — Spamhaus, Barracuda, SORBS, UCEPROTECT and more — before your next campaign goes out.
Connect directly to the recipient's mail server and confirm whether the specific inbox actually exists and is currently accepting mail — the deepest validation check available.
Paste raw email headers to diagnose delivery failures, trace message routing across servers, identify spam score assignments and pinpoint exactly where your email went wrong.
We only store email data with your explicit consent. You control your data — accept or decline via our cookie banner at any time. We never sell to third parties.
No signup, no waiting, no credits. Paste an email and get your result in under a second.
Built to respect GDPR, UK GDPR, CCPA and India's DPDP Act. No trackers, no selling your data, no nonsense.
Six powerful tools covering everything from syntax to spam to blacklists — all free, all in one place.
EmailSheriff is designed to respect privacy laws across every major region.