We're trying to improve deliverability results and wondered if Launchpoint has one that is recommended by the community. If not, is there one outside of Launchpoint that should be considered.
We partner with 250ok and resell their email deliverability solution. You can contact your account manager to get pricing information.
We use Strikeiron which is fairly good. There's a few discussions on here as well.
When we were having deliverability issues we used mxtoolbox.com to help identify what blacklists were being triggered. It doesn't give a ton of information but enough to help steer you in the right direction.