Chris - We initially display only the email addresses that bounces that we recommend you either correct or removed, so it sounds like of the 10 bounces email addresses, only 4 of them are bouncing because the email addresses are non-existent or undeliverable. The other may be bouncing for reasons that could clear themselves up, such as a vacation/out of office autoreply or mailbox full bounce type. To see all the bounces for a particular email campaign, look at the top right of the table of bounced email addresses -- you should see a drop-down menu next to "Display". It's initially set to "Recommended for removal", but you can choose "All bounce types".
Jennifer Bubriski
Group Product Manager
... View more