Receiving Training Test Emails

Has anyone else been receiving test training emails (from 07 Traniee, 03Traniee, 02 Traniee, 08 Traniee, 09 Traniee). These emails are all tests and are clearly from a training session. I'm not sure how they are being sent to my email account though, as individuals are asked to send test emails to their own email accounts.

Anyone else ever run into this issue? Any way to get it to stop? Is this a larger issue?

Thanks!