Any help on this problem is dually appreciated: I've got an Earthlink account for my web/email and have had it for about 5 or 6 years with no troubles, and I use a Mac with Mac mail. A week ago, I stopped being able to send emails to all Yahoo email accounts (I get back only "returned mail" emails), but can send to all others and can receive from all including Yahoo. I did nothing to change any settings on my machine. Earthlink is currently working on my issue, but hasn't been able to resolve it yet and my trust with them is dwindling. Suggestions or ideas before I jump ship for another provider?