Mass Email/Data Miner software that lets you make personalized messages?

I get a lot of spam emails to my business contact email I have on my website and recently, 1 stood out. I was sent a personalized email where they used the @username of my instagram page along with my exact follower count and rate of engagement that each of my pics was getting.

Does anyone know of a data miner/mass emailer that can send out personalized messages to this degree? They were literally able to tell me my @username associated with my email and tell me that my follower count was xxxx and average engagement on my posts was xx and then proceeded to offer me their services.

Bump

Hoping to find some sort of software that can do the level of personalization when mass emailing described above.