A few years ago when we built our custom newsletter system for Detailed Image I wrote about all of the extensive features it included. One feature we overlooked though was user agent tracking for opens, which can be used to determine which client the subscriber is using to open and read the email. Lacking this information became a problem when we went responsive with all of our newsletters last year and had to determine how to prioritize our client testing. We wanted it to be… Continue reading
A List of Email Client User Agents (Plus Our Most Popular Client)
3/31/15