Mailfloss is what I use to make sure the emails that are used to sign up for my email list is clean. Meaning they aren’t fake, non-existent, abandoned or more. This in turn boosts my deliverability rate. I LOVE this because Mailfloss does it automatically. I don’t have to download my list, clean it and re-upload back. Who has time for that.

Right now, you can get 50% prepaid credits or 80% off subscriptions for your first 6 months.