If i send an email to somone, ie by using an alias name, and false registered real name could it be traced back to me by a corperate company?

Thing is, i really have some issues to get off my chest to my area manager. I know major stuff about him and i am afraid if i whistleblow him i will get sacked.

So i was thinking if i set up a different name, different email address, couldthe company trace it back to me at all? ie my real name, real net provider etc.

i cant continue knowing what i know.

help, please