What are you using for highly personalized emails?
I'm doing a little reasearch and would like to know if you are doing any highly personalized emails and if so, how do you execute it? Which ESP has the ability to provide it, which (programming)language do you use and so on.
As for highly personalized, think of emails which are automated to add in similar products based on purchased product, area etc. (think of Amazon emails for example)
Would really love to hear how you manage and automate these things.