It feels like the technical definition of "Verified" no longer correlates with "Reachable."
A few observations:
The Catch-All Silent Drop: Enterprise servers (O365/Mimecast) now seem to "accept" all mail to prevent directory harvest attacks, only to silently drop it or route it to a quarantine folder if the sender isn't on a whitelist.
Resale Fingerprinting: If a "verified" record is sold to 1,000 customers, and even 5% of them send low-quality outreach, do ISPs now "poison" that specific recipient address for all external cold mail?
The Engagement Wall: In 2026, it seems Google/Microsoft filters have moved entirely to reputation based on bi-directional interaction. If you don't have a history with a domain, your "verified" email is effectively treated as shadow-spam.
I’m curious to hear from the community: 1. Is anyone still seeing ROI on purchased lists, or has the "Data Broker" model finally been defeated by AI-driven ISP filters? 2. Has anyone found a technical workaround for the "silent drop" on catch-all domains?
