We signed up with sparkpost yesterday around 9am. Purchased the 100k account and our own IP. Email sent was only about 11k emails which are just notification emails to the same 10-15 people. 4am I wake up to an email that says account was downgraded per our request. I wake up and go look at my terminal and our account was suspended. Suspended for sending emails using an email service? I immediately wrote them but as of yet, have not heard a peep. No warning, just poof.. account suspended. When I goto my billing tab in the account it says the account was terminated. I am posting this as a message for people to be aware.
I already have a mailgun account and will start using that unless I hear back from sparkpost. If I do, I will update this post, actually, I will update it either way in the next 24 hours.