dutch169
1. No, your salesman is just either misinformed or a liar... or both.
2. Yeah, with the default apps it is just how it works; however you can get it working the way you want if you pay more money.
3. Yahoo is a problem for any POP/SMTP client; unless of course you upgrade to the paid service from yahoo. This link details how POP isn't part of the free service and also details how to upgrade to mailplus:
http://overview.mail.yahoo.com/enhancements/mailplus
4. Yes