Verify every email, even catch-all domains
Stop guessing which emails are safe to send. Our deep validation technology verifies emails that other tools mark as unknown — keeping your bounce rate below 5%.
The problem with email verification
Traditional email verifiers leave too much uncertainty. Up to 30% of your email list could be unverifiable.
Invalid emails
Hard bounces damage your sender reputation and waste campaign spend.
Unknown / risky emails
Standard verifiers mark 20-30% of emails as 'unknown' — leaving you guessing.
Catch-all domains
Up to 30% of corporate domains use catch-all configs, making verification impossible with traditional tools.
Our solution: deep email validation
Prospecco's deep validation goes beyond SMTP checks to verify emails at catch-all domains with confidence.
Multi-layer verification
We combine syntax checks, domain validation, MX record lookups, and SMTP verification in a comprehensive pipeline.
Proprietary catch-all detection
Our deep validation engine uses behavioral analysis and pattern matching to verify individual addresses at catch-all domains.
Bounce rate guarantee
We guarantee less than 5% bounce rate on emails we mark as valid. If we are wrong, we credit your account.
Sample verification results
Typical results from verifying a 10,000 email list
Verification features
Built for teams that need reliable email verification at scale.
Catch-All Verification
Our proprietary deep validation technology verifies emails at catch-all domains that other tools mark as 'unknown'.
Bulk Verification
Upload lists of any size. Verify thousands of emails concurrently with real-time status and progress tracking.
API Access
Integrate email verification into your workflow with our REST API. Verify on signup, import, or at any touchpoint.
CRM Integrations
Connect directly to Salesforce, HubSpot, and other CRMs. Automatically verify emails as they enter your system.
Real results from real teams
Teams that reduced their bounce rates with Prospecco.
“We were skipping 25% of our list because other verifiers flagged them as catch-all. Prospecco verified most of those and our bounce rate dropped to 2.1%.”
Emily Torres
VP of Marketing, OutboundPro
“The API integration was seamless. We now verify every email on signup and our deliverability scores have never been higher.”
James Kim
Engineering Lead, DataFirst
Stop bouncing. Start verifying.
Upload your first list free and see the difference deep validation makes. No credit card required.