Cox and Apple Email
Recently Cox changed some port numbers and when I tried to make the changes they requested my accounts could no longer be accessed. One of my 4 accounts shows a sguiggly line next to the account name and emails can't be seen in the main mail box window. The other 3 email address do show mail in the mail window but can't be opened and they have the sguiggly lines as well which I know means the account is offline. I checked the settings in Preferences and they are what I was told. I don't know what else to try. Cox doesn't help as they say its Apples problem. Apple can't find the answer either.
iMac, OS X Yosemite (10.10.2)