I haven't been in any job search scenarios for more than a decade (knock on wood) but...seriously? You're now discriminated because of your email provider? I have never used my ISP's address because I'd rather use the same Hotmail (or rather Outlook now) email address I've been using for nearly a decade now. Who decides what is a disposable email address? I may ditch my ISP and still stick with my old email address because as far as I'm concerned, the ISP is disposable and the email address I've had since forever isn't. I can understand discrimination based on goofy or offensive email prefixes, but discriminating based on the e-mail provider itself is taking things a bit too far.