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Bulk email verifier
Bulk email verifier for CSV and TXT lists.
Upload a bulk email list, remove duplicate addresses, verify each unique email, and export clean CSV segments before you send.
Use Zeylora when you need a bulk email verifier for campaign lists, CRM exports, newsletter databases, and agency workflows.
Start free with 50 email verifications. No subscription required.
CSV/TXT list upload
Duplicates removed before billing
Up to 50,000 emails per public job
Clean CSV downloads
List quality check
Upload, paste, verify.
See unique emails, duplicates, required verifications, and list risk before you spend anything.
Uploaded
0
Unique
0
Duplicates
0
Needed
0
Ready workflow
Paste or upload emails to estimate list quality and required verifications.
List score--/100
Likely valid
0%
Risk estimate
0%
Duplicate rate
0%
Focused workflow
Built for list uploads, not one-by-one checks.
Bulk email verification needs a workflow that can parse files, count unique emails, reserve the right verification volume, and export usable segments.
Bulk CSV/TXT verification
Upload marketing lists, CRM exports, or newsletter files and let the server parse the list safely.
Unique email counting
Zeylora deduplicates first, then calculates the exact verification count for the job.
Risk and catch-all review
Separate uncertain results from valid addresses instead of deleting everything blindly.
Segmented exports
Download valid-only, invalid-only, risky/catch-all, disposable, and full report CSVs.
Simple workflow
Upload, verify, export.
Keep paid traffic focused on one job: add a list, verify unique emails, and download CSV segments before your next send.
1. Add emails
Paste addresses or upload CSV/TXT files. Zeylora parses rows and removes duplicates.
2. Verify unique emails
Check syntax, domain, disposable, risky, catch-all, and deliverability signals.
3. Download CSVs
Export valid-only, invalid-only, risky/catch-all, disposable, and full reports.
Campaign protection
Bulk sends amplify bad data fast.
One dirty bulk list can create a wave of bounces. Verify the list first so your campaign starts with cleaner, segmented data.
Valid emails
Ready for campaign export.
Invalid emails
Remove hard-bounce risk.
Risky / catch-all
Review uncertain addresses separately.
Full report
Keep row-level status for your team.
Usage based, no subscription
View all packagesStart with the right verification volume.
1 email verification checks 1 unique email. Buy once, clean your list, and export the CSV segments you need.
Starter
Most popularVerify your first 1,000 emails, reduce bounce risk, and export clean CSV segments.
$9
1,000 email verifications
$9.00 per 1k
Growth
Clean recurring newsletter, lead magnet, and outbound lists before sending.
$29
5,000 email verifications
$5.80 per 1k
Scale
Most popularBuilt for teams verifying CRM exports, cold email lists, and higher-volume campaigns.
$79
20,000 email verifications
$3.95 per 1k
Quick answers
Before you verify emails.
Can I upload a CSV file?
Yes. Zeylora supports CSV and TXT uploads from the dashboard, plus pasted lists for smaller batches.
How many verifications does a bulk list need?
One unique email uses one verification. Duplicate rows are removed before the job is charged.
What is the current public job limit?
The current public job limit is 50,000 emails. Larger lists should be split or handled with support.
Can I export results by status?
Yes. You can download separate CSV files for valid, invalid, risky/catch-all, disposable, and full report results.