Mail If I Upgrade to Yahoo Plus
 

I understand I need a yahoo plus account if I want full functionality using Mac mail. My question is, if I upgrade to yahoo plus what functions will I have using Mac Mail? For example, will I only see my inbox or will all other created folders be accessible? Will my contacts move to Mac Mail? Or will I simply be able to read/write emails? thx

I believe Yahoo Plus only has POP ability. If you have never used POP it basically means that you can receive new email but your folders, contacts, and previous emails will not sync to Mac Mail.

In other words POP just forwards a copy of your emails to your Mac Mail and allows you to send emails using your Yahoo email account through Mac Mail. If you want to sync your emails and folders then you need IMAP ability.