Add to Any Subscribe still sending Emails after removal…

After installation of the Add to Any ‘Subscribe’ feature into Word Press, I began to receive emails announcing my new postings from Feedblitz. I assumed that Feedblitz and Add to Any are the same people. All of my initial subscribers used that button.

A month or two later, I decided I didn’t like the Feedblitz method of sending a complete copy of my postings to each of my subscribers, so I switched to Subscribe2. But even though I removed all references to Add to Any from my blogs configuration, even deleting code I found, my subscribers still receive a Feedblitz notification of new postings.

What’s the next step in stopping Feedblitz emails?

Thanks!