Scam or Dell?

I received a call this morning from an alleged Dell technician that my email was sending out spam emails. I was skeptical because I've seen no unusual activity on my email account, my computer has been working fine, and he wanted to take remote control to fix the problem (refusing to simply walk me through). This was the point where I hung up because I wasn't going to give remote access of my computer to a potential scammer. It seems to me that if my email was sending spam it would be a problem with my email security rather than my computer itself. My main question is whether this was possibly a legit call. I doubt it was since I've received scam calls in the past from 'Dell employees', but thought I would post it here to see.