I sure hope more developers don't listen to your call and start doing this. This is SPAM, pure and simple. I didn't give my email address to Tether or SmrtGuard in order for them to take liberties with it and start spamming me with unsolicited commercial emails. With all the hubbub in the media about privacy these days, and what the folks like Facebook and Google and whoever are doing with your information, you find it acceptable that they do this? I don't.

This was poorly handled by these two companies. What they SHOULD have done was create and OPT IN distribution list that ONLY spams customers like this if they CHOOSE to be spammed. Okay, ONE email to all existing customers advising them of the intention to create this OPT IN partner spam list, and giving us a URL to sign up if we so choose, put the default shouldnt be that it's acceptable to spam your existing customers.