Identify Mass-Messaging Software

I have several screenshots of a bulk-messaging dashboard and need the exact software behind it identified. Your task is to study the images I will share once the project starts, dig through search engines, social media, review sites, and any niche forums, and come back with the confirmed product name (and, if possible, its official website so I can verify).

I’m only interested in the accurate name; pricing, features, and other details are optional bonuses. Please outline briefly how you plan to run the search and how long you expect it to take before delivering the answer.