In the early days of the internet, you could buy a list of a million or so email addresses, mail your ad to all of them and, if you were lucky, make a tidy profit.
Those days are GONE.
There's a good chance you'll get email offering to mail to a big list, or to sell you a big list you can mail to. The ads will often say something like "a targeted list of 5,000,000 email addresses," or a "brand new, clean list of 10,000,000 addresses."
They are LYING!
The only thing I'm going to say about bulk email is this:
DON'T DO IT. Here's why:
Better that you put your own list together - Under Construction, mail to opt-in lists, or use any of the other strategies on this site to promote your Wholly Water site.