Surely, applying this mathematical formula in your e-mail campaigns you will achieve your ma
rketing goals. Although I am not designer, I would like to talk about this matter from another point of view: corporate communication.
I thought about this when I received an email that was composed of only an image, and it was a deformed image on top of that!. What I had in my inbox was an e-mail marketing "disaster": you could not see the product, you could not read the text because it was distorted too and, in short, the corporate image of the company seemed very inappropriate.
I think that comming of Christmas promotes the growth of e-mail marketing, especially about promotional gifts, Christmas hampers, printing works and similar articles. I believe this is the reason why the quality of mailings go down and their amount increase .
If you're thinking about making e-mail marketing actions to these special dates, do not neglect the ways and ask professionals. And remember: text,is text; image, image.
Here we are ;-)