Hi all. @Abe Adel mentioned Outscraper in here a while back and it reminded me of the thing that ate the most time when I started building lists. You pull a few hundred businesses out of Outscraper and a big chunk of what comes back is hello@, info@ or inquiries@, plus a pile of catch-all domains that accept anything you send them. The catch-alls look fine and then do nothing, because nobody owns that inbox. What I do now: 1. Pull the list in Outscraper as usual, but keep the domain and bin the generic email. 2. Run those domains through Apollo to get named people at each company, so you're writing to a person and not a front desk. 3. Where Apollo has no hit, waterfall to a second source. Guessing the first.last@ pattern is where most of your bounce rate comes from. 4. Put the whole lot through Reoon Email Verifier before it goes near a sending tool. It separates the catch-alls out instead of lumping them in with the valid ones. 5. Send to verified only. Park the catch-alls in their own list if you want to test them later, but keep them out of the main sequence. The generic inbox is the part that kills a campaign without ever showing up as a problem. Bounces damage the sending domain, and info@ is almost never read by the person who can say yes. Happy to share the Apollo filters I use if anyone wants them.