...does it change your opinion of them?

I have a friend who is doing a job search. She uses a hotmail address, and I suggested that she change it to gmail for her search. She demurred and I didn't press it. I do think though that a hotmail address isn't likely to help a job search... unless you're applying to work at Microsoft!

If someone gives you their email address and you can see which service they use, does it change your opinion of them?