I run my personal email in (Apple) Mail, and my business email in Yahoo Mail. I may need to send occasional email blasts or other large groups emailings from my business. I know how send group emails in Mail, but that will show it as originating from my personal address, and I need it to at least seem to be issuing from my business email. I would do it from Yahoo, except that I can't get Yahoo to accept my business card scanner's VCards (for no reason I can discover; they're perfectly good .vcf files that work fine with Address Book and Entourage, but Yahoo claims they aren't "real" .vcf files). So the only way I can get all these biz cards into my computer, then back out onto group emails, is via Mail. So is there a way to fake it so these emails will display my Yahoo business address? I am confused.