Interesting idea! However from what I have seen, to truly engage your customers through email, it either needs to be personalized, be intelligent enough to track current activity and engagement levels of users and tailor the mails you send accordingly, or .. something else?
It would be nice to hear just out of curiosity what kind of market (low number of important customers or high number of users or both) you are targeting, and what is your strategy on a higher level to increase conversions?
Introduce your product through a series of emails.
Two huge benefits over what you do today (almost certainly a singular welcome email)
* helps users understand your product
* reminds users of your product. What was the last product you signed up for? Unless it was userfox, you've forgotten!
Introduce features, tell the story of why you're building what you're building, and so on. I love emails that profile power users. Real explicit actionable advice.
I totally agree you should write specific emails about specific features. We'll support that, but right now you'll make more money by sending a few welcome emails rather than just one.
It would be nice to hear just out of curiosity what kind of market (low number of important customers or high number of users or both) you are targeting, and what is your strategy on a higher level to increase conversions?