I have an sbcglobal.net email account on a Late 2013 Mac using Yosemite. Suddenly I kept getting prompts to enter my password, which it wouldn't accept. Tried to correct and says "Unable to verify account name or password."
Sbcglobal.net email on a Mac stopped working. Says "Mail can't connect to the Yahoo! account "...@sbcglobal.net". Enter the password for "...@sbcglobal.net." I enter it, but won't accept it, I just keep getting the same message. In Internet Accounts I deleted the password and reentered it, (it's correct), and it says "Unable to verify account name or password." I have a Late 2013 Mac on Yosemite. (I can't upgrade because I have a critical work program that isn't guaranteed to work on any subsequent OSs. I can still get this account on my iphone.
iMac 21.5″, OS X 10.10