Email Reputation & Threat Risk Checker
Check email reputation score, detect disposable inboxes, verify MX records, and audit deliverability risks with client-side analysis.
Check Email Address
Domain stripe.com has active enterprise mail exchangers (MX) configured.
Deliverability Checklist
- SPF Record: Protects your domain from unauthorized IP spoofing.
- DKIM Signature: Cryptographically signs headers to prove email integrity.
- DMARC Policy: Instructs receivers to quarantine or reject spoofed mail.
- List Hygiene: Prune unverified or disposable addresses to maintain low bounce rates (<2%).
Reputation & Risk Report
High TrustAbout this tool
How to use it
- Enter any email address or select one of the pre-loaded audit profiles.
- Inspect the overall Email Reputation Score (0 to 100) and Trust Rating.
- Review syntax compliance, domain classification (Corporate, Free Webmail, Disposable), and MX/SPF deliverability signals.
- Examine risk warnings including typo-squatting, disposable inbox provider flags, and randomized username heuristics.
- Consult the Deliverability Checklist to improve sender reputation and prevent outgoing messages from landing in spam folders.
Why it matters
Fake email signups, spam bots, disposable inboxes, and phishing lookalike domains pollute CRM databases, damage cold email sender deliverability, and expose SaaS platforms to trial abuse. This client-side analyzer audits email addresses against disposable provider blacklists, RFC syntax standards, and DNS authentication records without sharing user emails with third-party tracking services.
When to use it
Use before launching B2B cold email campaigns, auditing user signup databases, verifying user contact information, or filtering out disposable temporary inboxes.
Common questions
How is the Email Reputation Score calculated?
The score combines RFC 5322 syntax validation, domain credibility (custom enterprise vs free webmail vs disposable), MX record presence, username randomness heuristics, and typo-squatting detection on an objective 0 to 100 scale.
What is a disposable email address?
Disposable or throwaway emails (e.g. Mailinator, GuerrillaMail, 10MinuteMail) are temporary inboxes that expire after minutes or hours. They are frequently used to bypass signup forms, claim free trials repeatedly, or post spam anonymously.
Does this tool verify if an individual mailbox actually exists on the remote mail server?
Direct SMTP VRFY or RCPT handshake verification is intentionally avoided because modern mail servers (Google Workspace, Microsoft 365) block real-time SMTP probing as suspicious activity. Instead, this tool audits domain records, MX infrastructure, syntax, and threat heuristics client-side.
Are checked email addresses stored or logged?
No. The tool runs completely inside your client browser. No email addresses, names, or domains are logged, stored, or sent to analytics trackers.