What a 0.33% bounce rate tells your clients

2,120 cold emails sent across six campaigns. Seven bounced. That 0.33% bounce rate is the most important trust signal in outreach.

High bounces tell email providers you're blasting bad lists — and soon everything from your domain lands in spam, including client emails and invoices.

Near-zero bounces come from discipline: verified addresses, hand-built lists, dedicated warmed sending accounts, strict daily limits. Your domain is never touched.

That discipline is what sits underneath a 59.61% open rate and 25 positive replies. So ask anyone running outreach for you one question first: what's your bounce rate?