For SDRs & Account Executives

Send Cold Emails That Actually Land

Bad email addresses tank your domain reputation and kill reply rates. Truelist verifies your lead lists before outreach — so every email you send reaches a real inbox.

shield Protect your domain.: High bounce rates get you blacklisted. Verify your lists first and keep your sender reputation clean.
upload_file Validate any lead list.: Upload CSVs from Apollo, ZoomInfo, or any lead source. Get results in minutes, not hours.
neurology 2x more accurate.: Enhanced Validation cuts through catch-all domains that fool other tools — so you don't waste outreach on dead addresses.

Bulk Email Verification

Verifying List

marketing-contacts.csv

0 of 5

Email	Status
sarah.jones@acme.co	Checking...
mike.chen@techcorp.io	Pending
lisa.wang@startup.com	Pending
invalid@test	Pending
john@catchall.net	Pending

0 Ok

0 Risky

0 Invalid

Sound familiar?

error Bounced emails are killing your domain: You bought a lead list, sent a campaign, and watched your bounce rate spike. Now Gmail is flagging your messages.
verified Most verifiers miss bad emails: Standard verification tools can't tell the difference on catch-all domains. You end up emailing addresses that look valid but bounce anyway.
help Catch-all domains hide bad emails: Other verification tools mark catch-all domains as "unknown." You're left guessing which emails are real.
hourglass_empty Slow verification delays outreach: Your team has leads to contact today. Waiting hours for verification results means missed opportunities.

Built for outbound teams

The most accurate way to verify your lead lists

Truelist goes beyond standard SMTP checks with multi-source verification — so you can validate every lead list with confidence before outreach.

verified

Up to 2x more accurate results

Enhanced Validation uses multiple data sources and advanced heuristics to catch invalid emails that other tools miss.

upload_file

Upload any lead list

Drop in CSVs from Apollo, ZoomInfo, or any lead source. Get verified results in minutes so you can start outreach the same day.

speed

Fast results, simple interface

Upload your list, get verified results in minutes. Export clean lists and start outreach the same day.

Use cases

How sales teams use Truelist

list_alt Verify purchased lead lists: Bought leads from Apollo, ZoomInfo, or another provider? Run them through Truelist before loading into your sequencer.
sync Clean your CRM contacts: Export contacts from Salesforce or HubSpot, verify them, and remove dead addresses that hurt your deliverability.
campaign Pre-validate outbound campaigns: Before launching a new cold email sequence, verify the full list to maximize inbox placement and reply rates.
verified_user Protect your domain reputation: Keep bounce rates under 2% by verifying every list before sending. Avoid blacklists and spam folders.

Stop guessing. Start verifying.

Upload your lead list and get verified results in minutes. No credit card required.

Start verifying for free View pricing

Frequently Asked Questions

Can't find the answer you're looking for? Reach out to our support team.

Can I verify lead lists from Apollo, ZoomInfo, or other providers?: Yes. Upload any CSV or Excel file with email addresses. Truelist works with any lead source.
How fast can I verify a list?: Most lists are processed in minutes. Large lists (100k+) typically finish within an hour.
Will this help my cold email deliverability?: Yes. Removing invalid addresses reduces bounces, which protects your sender reputation and improves inbox placement.
What about catch-all domains?: Our Enhanced Validation uses multiple data sources to identify invalid emails on catch-all domains — where other tools just say "unknown."
How is Truelist different from NeverBounce or ZeroBounce?: Truelist's Enhanced Validation goes beyond standard SMTP checks, using multiple data sources to deliver up to 2x more accurate results — especially on catch-all domains where other tools give up.