deliverability
3 field notes tagged deliverability. Pipeline data from a working B2B intelligence platform. Written by Alex, founder.
We Probed 211 B2B Domains: 67% Are Catch-All, and No Email Format Covers 1 in 6 Companies
First-party data from 3,508 recorded SMTP probe outcomes: catch-all domain rate, business email format distribution, and how often plausible addresses get refused.
More in deliverability
Email Finder and Verifier (2026): Why It Should Be One Step, Not Two Tools
Most teams run a finder, export a list, then pay a verifier to clean it. Here is what that two-tool stack costs, where it silently fails on catch-all domains, and when one delivery-time step replaces both.
How to Verify an Email Address Without Sending an Email (2026)
You can check whether a mailbox exists without ever sending a message, using the SMTP handshake mail servers run before accepting delivery. The manual method, its limits, and when a tool is the honest answer.
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