Verify Email Lists in Minutes.
99.5% Accuracy. No Subscription.
Upload your CSV, get a clean verified file — fast. Remove invalid, disposable, and risky addresses before they destroy your sender reputation.
No credit card required · No monthly fee · Pay only per verification
Upload. Verify. Download Clean List.
Three steps between your messy list and a verified, campaign-ready file.
Upload Your List
Upload CSV, TXT, or Excel files — any size. Drag and drop directly in your dashboard. No technical setup required.
Verification Runs
Zuhal checks every address against MX records, SMTP handshake, syntax rules, and disposable domain databases. Real-time progress tracking in your dashboard.
Download Clean Results
Download a clean list of only valid addresses, or separate files by result category. Import directly into your sending platform.
Every Type of Bad Email — Caught.
Not just "valid" or "invalid." Zuhal returns precise categories so you know exactly what to do with every address.
Emails that don't exist on the mail server. Sending to these causes hard bounces — the fastest way to get your domain blacklisted.
Temporary mailboxes (Mailinator, Guerrilla Mail, etc.) used to sign up once and disappear. Remove them before they inflate your unsubscribe rates.
Domains that accept every email regardless of whether the mailbox exists. Flagged separately so you can decide your own suppression policy.
Shared inboxes like info@, support@, noreply@ — these damage engagement metrics and trigger spam filters. Identify and suppress them automatically.
Honey-pot addresses placed by ISPs and blacklist operators. Hitting a spam trap can instantly damage your sending reputation.
Automatically de-duplicated before verification runs — you only pay credits for unique addresses. No wasted spend on repeated entries.
Everything Your Team Needs
Bulk verification built for B2B teams, agencies, and high-volume senders.
Large File Support
Upload lists up to 10 million emails in a single job. CSV, TXT, and Excel all supported. Column detection is automatic.
- CSV / TXT / Excel formats
- Automatic column detection
- Drag-and-drop upload
- No list size limit
Real-Time Progress
Watch verification run live in your dashboard. See result counts update in real time — no waiting for a completion email.
- Live progress tracking
- Per-category result counts
- Email notification on completion
- Full audit log per job
Flexible Download Options
Download a single clean list, or separate files by category. Filter exactly which result types you want to keep or suppress.
- Download by category
- Valid-only export
- Original data preserved
- Results retained 90 days
REST API Access
Submit bulk jobs or verify single addresses programmatically. JSON responses, straightforward authentication — integrate in minutes.
- Bulk job API endpoint
- Single-check real-time API
- Webhook on job completion
- API key management
Credits Never Expire
Buy a block of credits when it suits your budget. Use them whenever you're ready — no monthly burn, no forced renewals.
- Pay-as-you-go model
- No subscription required
- Volume discounts available
- Credits roll over indefinitely
Secure Processing
Lists processed in isolated environments. Never shared with third parties. Automatically purged from servers after verification.
- Encrypted file transfer
- No third-party data sharing
- GDPR compliant processing
- Auto-purge after completion
Ready to Clean Your Email List?
Upload your first list free. 100 credits — no credit card required. See the results before you commit a dollar.
Upload My List →Pay-As-You-Go. No Surprises.
No monthly fees. No subscriptions. Credits never expire. Buy exactly what you need.
Need more than 1M credits? Contact us for volume pricing
Bulk Verification — Common Questions
Start Verifying Your Email List Today
100 free credits. No credit card. No monthly fee. See why B2B teams and agencies trust Zuhal for bulk email verification.
Get 100 Free Credits →No credit card required · Pay-as-you-go · Credits never expire