You should NOT use your work e-mail for non-work purposes.
People have gotten fired for doing so.
Check out this example of this douche-bag kid from the financial services industry.
I actually know a guy from tennis that got fired from his engineering gig at Lockheed Martin for MERELY FORWARDING a joke non-PC e-mail from another Lockheed guy. It looks like HR chose to make an example out of dude.
Gmail & Yahoo are free e-mail yall dee dee dees, use them instead for non-work purposes.