When it comes to email marketing, there’s a range of analytics — from sends to clicks to bounces, that senders tend to focus on.
Then there’s the lesser known and checked statistic referred to in the industry as “graymail.”
Don’t know what this is? Graymail is the portion of email sent repeatedly by a company that is never opened by recipients. This signals out which contacts are likely still viable but aren’t being engaged by your content.