have an iPhone with iOS6 installed. Haven't changed a thing for quite a while, but it stopped receiving Verizon/Yahoo emails yesterday (using the built-in Mail app). Did Verizon change something on the email settings? My emails are coming into my home computer so my password is correct and active.
If you haven't been following the email changes messages going on for much of the year, YES they have been changed. Old servers are being retired.
I've been wracking my brain over this for a few days and I finally found the solution. Before it was enough to just use your username to access your email account, but since Yahoo's outage you apparently need to add "@verizon.net" to the end of your username for it to work. I was going crazy because I quadruple checked my port and SSL settings on my phone like all the other forum posts suggest. All my settings lined up with what they should ave been but still wouldn't work. On a whim, a final desperate try before I deleted the account from my phone, I added the "@verizon.net" after my username, and the !#@%# thing worked! Give it a try. It certainly won't make it work any LESS.