Wait what? I'm sorry, I may just be a little dumb or something. But after clicking on "corporate" in the add accounts section, none of that shows up. Where can I find/do all of that?
You do not have to select ssl for security. If you do it like Droid-Xer says in his last post it works. At least it did for me. It may have selected SSL automatically for me but I did not manually do it. I entered Smtp.mobile.mail.yahoo.com and it worked. Thanks D-Xer for the suggestion.