I have asked for domain verification and email setup on my end. It takes a lot of back-and-forth, and by the end, they tell me I don't have enough credits for 50k to 100k monthly email usage, even though I purchased two products from them. One is tier 3, and another is tier 1. The support team is hard to work with because they cannot check the account details for the purchase or the credits on our account on their end.

I ended up using another email provider for my email campaigns. Wasted the account and the money