Built for outbound: flag catch-all corporate domains and role accounts, screen spam traps, and clean a decaying CRM before a single cold email goes out. Protect the sending reputation your whole team relies on.
Verify my list, 100 free See the API No credit card required. Credits never expire. 16-point engine with live SMTP.Consumer rules do not apply. Business data decays fast and corporate mail servers fight back.
People change jobs constantly. A CRM that was clean last quarter is quietly full of dead mailboxes today.
Many company servers accept every address, so naive tools wrongly mark risky contacts "valid." We flag them honestly.
info@ and sales@ inboxes and recycled spam traps are common in B2B data and are the fastest way to a blacklist.
Every address comes back with a verdict tuned for outbound deliverability.
| Result | What it means in B2B | Recommended action |
|---|---|---|
| passed | Deliverable business mailbox | Safe to include in outreach |
| failed | Invalid / does not exist | Remove before sending |
| unknown | Catch-all domain (cannot be confirmed) | Risk-segment, send carefully |
| role | Shared mailbox (info@, sales@) | Exclude or handle separately |
We detect and flag catch-all domains as unknown. We never claim to validate a catch-all mailbox as good or bad, because that is not technically possible.
Verify where the bad data enters and where it ages.
Check new leads in real time via the API as they hit your CRM, so junk never lands in the pipeline.
Export and re-verify your database each quarter to fight 25 to 35% annual decay. See CRM verification.
Run your target list through the bulk verifier right before a cold campaign.
B2B deliverability, answered.
B2B email verification checks business email addresses before you send, with a focus on the things that wreck cold outreach: catch-all corporate domains, role accounts like info@ and sales@, and stale contacts from a decaying CRM. It protects your sending domain reputation so your outbound actually reaches the inbox.
Many company domains are configured to accept mail for any address, so a single check cannot confirm an individual mailbox. We detect catch-all domains and flag them as "unknown" rather than guessing, so you can risk-segment them and send carefully, instead of being told a risky address is safe. We do not pretend to validate catch-all mailboxes, because no honest tool can.
Role accounts (info@, sales@, support@, admin@) are shared, non-personal mailboxes that are more likely to mark mail as spam and less likely to convert. We flag them so you can exclude or handle them separately in cold outreach, protecting both reputation and reply rates.
B2B contact data decays roughly 25 to 35 percent per year as people change jobs. A full CRM re-verification each quarter, plus verify-at-point-of-entry on new leads, keeps bounce rates low and your pipeline working real contacts.
Yes. Removing invalid addresses, flagging catch-all and role accounts, and screening spam traps before a campaign is the single biggest lever for protecting a sending domain. Pair it with proper authentication and sensible volume for best results.
Pay-as-you-go, one credit per address, billed only for Passed and Failed results, with credits that never expire. Every new account gets 100 free credits, so you can verify a segment of your CRM at no cost.
Verify a segment of your CRM free and see how much of it is about to bounce. 100 free credits, no card.
Verify my list freeRunning consumer signups instead? See B2C email verification. Related: cold email, CRM cleaning, catch-all handling.