Added a new feature to creating campaigns for email marketing. The option to randomize a list. To do this under create campaign or create A/B campaign click on advanced settings and check the “Randomize List” option. One of the benefits of this feature is when you have a list with many emails going to one domain in a row the system will randomize the order which reduces the connections and adds a time delay. This is another feature that may help improve the delivery in your marketing campaigns.
Email Marketing Software Blog