I test drove several email services before deciding to go with Mad Mimi. They provide enough features to send a good looking email campaign, with a very intuitive interface. There aren't a bunch of bells and whistles, and you don't need to earn a Phd....
I was easily able to compose and send an email to a list within minutes. The reporting on bounces, opt-outs and dead emails was fast and easy to follow!
When you upload a list of contact from your database, when they bounce these people automatically block your account and wont respond to the emails or reactivate the account and wont even refund the paid amount
The paid tiers are somewhat expensive to what you get