The team at BB is always working to make sure that our bounces are well looked after but have never said no when it comes to doing so! I've been using the service for over three years now as an admin of one of their clients and they're great - very quick with responses and fixes most issues quickly (at least quicker than some other providers). My only gripes would be with regards to certain campaigns where there could sometimes seem to be confusion in terms of what was causing the bounce. But this has all probably improved since my initial experience anyway as we have a new MD now who's taking charge. Great support. We do not receive any complaints from customers about bouncing emails or sending out spammy stuff etc. It just doesn't happen which really helps us deliver mail without issue. I love that Bounce Insight lets me see what is causing my bounces so I can make changes to improve deliverability. It's also easy for others in our organization who may not be familiar with tools like this to use as well! There are some things that we would prefer if they were more customizable but otherwise it works great! We have seen a decrease of about 20% in the number of emails being marked as spam or having too many bounces.