One of the biggest challenges in outbound campaigns is ensuring that your emails actually land. A high bounce rate doesn’t just hurt deliverability—it can tank the performance of your entire campaign. That’s where Sendr’s email enrichment and validation process makes a real difference.
How Our Enrichment Works
When you upload contacts into Sendr, our system doesn’t just guess an email address—it applies a structured, multi-step enrichment process:
Pattern Detection: We test up to 24–26 possible email formats (e.g., firstname.lastname@, f.lastname@, etc.) to identify the most likely match.
Verification Layer: Once we’ve found the probable pattern, we validate it with the mail server.
Catch-All Handling: Many domains return “yes” to every query (known as catch-all domains). Instead of leaving those unverified, we apply a second layer of validation to confirm whether the address is genuinely usable.
Our dataset is also refreshed every 30 days, ensuring results stay current, and our process is fully GDPR-compliant.
Why This Matters
Because of our catch-all validation, the enriched email lists you get from Sendr are more accurate than those from most providers. That means:
Fewer bounces in your campaigns
Better sender reputation with email platforms
Stronger overall deliverability and success rates
How We Compare
Most enrichment or validation tools stop at the server response. For catch-all domains, this means they’ll label everything as “valid,” which inflates accuracy on paper but causes issues later.
Other services (like MillionVerifier and similar tools) go the opposite way: they flag catch-all emails as invalid, which can cut 20% or more of your reachable prospects out of your list.
With Sendr, you don’t have to choose between inflated lists or overly aggressive pruning—we validate catch-alls intelligently, giving you the highest quality, most usable email data for your outreach.