For sales success there are much better ways than email marketing.
The best way to get the sale looks at how we communicate with each other.
Just be aware that when we communicate:
7% is based on the words we use
38% is based on the speech we use (tone, volume, pitch and pace)
55% is body language
To get the sale the worst option is to try to do it with email.
At least call your prospect or even better meet them face-to-face