Great for Large Audience Email Lists

We use Litmus specifically to check that our emails hit every inbox, and don't get flagged as spam. This helps us a lot as we are sending to a very big list, and getting flagged by a large server like Gmail or Outlook would be very bad for our numbers. We also recently started to use the widgets in our emails, to make them more interactive for our recipients.

We are able to check our email before sending, and revise content and copy to avoid spam filters.