Blastable

I thought I found a good one, once again, I was wronged by the sales speech.
Turns out they have to "review your email list", which is a word for scrutinize your prospect list, as they put it: "We do require users with warmed, opted in lists [...] to make sure our users do not Blast a high volume of invalid emails because it affects the integrity of our IPs".
So, forget about scrappers and cleaning list, if you want to send a million emails (I saw the comments), you need an actualized list of 1 million customers who signed up through your website. B2B emails do not pass the requirements.