Why are so many emails bouncing from the B2B list I bought? - Database Providers Community

Almost always it's the age of the data. People change jobs, companies switch domains, and mailboxes get shut down all the time. A list that was compiled months ago and resold again and again will be full of dead addresses by the time it reaches you. Ask the vendor one simple question: on what date were these records last verified? If they can't give you a date, that tells you most of what you need to know.

Stop sending to that list until you've cleaned it. Run the remaining contacts through an email verification tool and remove anything flagged invalid, along with risky catch-all addresses. Hard bounces don't just waste one campaign. Mailbox providers watch them, and a high bounce rate can start pushing your good emails into spam too.

Also check how you're sending. If you blasted the whole file from your main company domain on day one, you've made the damage worse. Use a separate domain for cold outreach, warm it up gradually, and send in small batches so you can catch a bad segment before it hurts your reputation.

We had the same problem with a pre-built list. What fixed it for us was switching to a vendor that compiles the data when you place the order instead of selling a file that's been sitting on a shelf. We used Database Providers for our last two campaigns. The records were pulled and verified for our order, and our bounce rate dropped noticeably compared with the old list.

Before you write it off completely, read the vendor's replacement policy. Many will credit or replace addresses that hard bounce within a set window, but only if you report them quickly and send them your bounce logs. Export your bounce report now while it's fresh.