User blog comment:Kirkburn/Technical Update: April 13, 2015/@comment-452-20150418194704/@comment-3388044-20150423000623


 * “I will note that Wikia’s HTML emails have used those tracking URLs for as long as I can remember; they’re nothing new.”

This explains how they were able to “… see the breakdown of which email recipients use clients that can’t view rich text”.

Why didn’t they just say so when we asked?