Bounce rate is calculated by dividing the number of bounced emails by the number sent. Bounces are split into hard and soft types. A high rate signals poor list quality and can harm your sender reputation.
Why it matters
Mailbox providers watch bounce rates as a sign of careless sending. Keeping the rate low protects your domain and ensures the messages you send can actually be read.
Common pitfalls and tips
Many teams aim to keep the rate low and investigate any sudden rise. Check list source, age and verification status first, since these are the most frequent causes.
Example
A rep sends 500 emails and 20 bounce. The bounce rate is 4 percent, so the team verifies the list, removes invalid addresses and sends smaller batches.
How Leadvaro relates: Looking up addresses with Email Finder helps you avoid sending to guesses.