Weird message via email HELP!

[eulah_2007]

I plugged my phone into my computer to charge (i have desk top manager installed). A couple minutes later i received a strange email it read - why are you always on bbm-. My concern is, i dont even have email as a feature on my phone. I have never received an email on the device. Is it possible for someone to hack my Blackberry through use of desktop manager, and would they be able to steal files ex. videos, pictures, contacts ect. I know its a dumb question but it would just be nice to know. Thanks!