The holiday email frenzy is in full swing as Black Friday offers clog everyone’s inbox.Email is becoming increasingly formulaic as marketers test, learn and apply lessons learned from responders. This is troubling to some creative types who don’t want to be confined by research or constrained by conventions developed by left-brain analytical wonks. But the reason email is so widely accepted, used and effective is because we have shared learnings collectively and continuously found new creative ways to illustrate our offers and craft our language.

