[pentium10]

What's your email about? That could be your problem! Share a screenshot.

[dave_walko]

No its not my email. They are system updates to the same people. None of them complain as they need these updates.

[michaelt]

It sounds like a reasonable call on sparkpost's part. 99.9% of the time, sending 10,000 e-mails to 10 recipients is a sign some of your code has gone wrong, like an e-mail sending loop getting stuck.