Free Email Checker
Verify any email address instantly. Check DNS records, MX configuration, SPF, DKIM, DMARC, and detect disposable emails — all without sending a single email.
Up to 5 free checks per day. No signup required.
Verification Results
This is a DNS-only check
DNS verification confirms the domain can receive email but cannot confirm the specific mailbox exists. For full SMTP mailbox verification with 98.4% accuracy, sign up for a free account.
Get full SMTP verification — 100 free creditsWhat Our Free Email Checker Verifies
Every free check runs 6 DNS-based validations in seconds.
Syntax Validation
Checks email format against RFC 5322 standards. Catches typos, missing @, invalid characters.
Domain & DNS Check
Confirms the domain exists and resolves. Detects NXDOMAIN (non-existent domains).
MX Record Lookup
Verifies mail exchange records exist and identifies the email provider (Gmail, Microsoft 365, etc.).
SPF Verification
Checks for Sender Policy Framework records that authorize mail servers for the domain.
DKIM & DMARC
Verifies DKIM signing and DMARC policy records for email authentication compliance.
Disposable Detection
Detects throwaway email services like Guerrilla Mail, Temp Mail, and 800+ other disposable providers.
Free Check vs Full Verification
Upgrade to a free account for complete SMTP mailbox verification.
| Check | Free (DNS) | Full (SMTP) |
|---|---|---|
| Syntax validation | ✓ | ✓ |
| Domain & DNS check | ✓ | ✓ |
| MX record lookup | ✓ | ✓ |
| SPF / DKIM / DMARC | ✓ | ✓ |
| Disposable detection | ✓ | ✓ |
| SMTP mailbox confirmation | ✗ | ✓ |
| Catch-all detection | ✗ | ✓ |
| Greylisting retry | ✗ | ✓ |
| Accuracy | ~80% | 98.4% |
| Price | Free (5/day) | Free (100 credits) |
Frequently Asked Questions
How does the free email checker work?
Enter any email address and we instantly run DNS-based validation: syntax check, domain existence, MX record lookup, SPF verification, DKIM and DMARC analysis, plus disposable email detection. Results appear in seconds without sending any emails.
Is the email checker really free?
Yes. You can check up to 5 email addresses per day without signing up. For higher volume and full SMTP mailbox verification, create a free account to get 100 verification credits — no credit card required.
What's the difference between DNS and SMTP verification?
DNS verification (what the free checker uses) confirms the domain can receive email by checking MX records and authentication settings. SMTP verification goes further by connecting to the mail server to confirm the specific mailbox exists. SMTP provides 98.4% accuracy vs ~80% for DNS-only.
Do you store the email addresses I check?
No. Free checks are processed in real-time and not stored or logged. Your email addresses remain completely private.
Can I verify emails in bulk?
The free checker supports one email at a time. For bulk verification, sign up free and upload a CSV file with thousands of addresses. You'll get 100 credits to start — no credit card required.
Need More Than 5 Checks?
Sign up for free and get 100 verification credits with full SMTP mailbox confirmation, bulk upload, API access, and CRM integration.