My Outlook email stopped sending this morning
My Outlook email stopped sending this morning. I'm using Outlook 10 Version 14.0.7 on Windows 7. I've rebooted, but it still won't send. Below is the error message I get.
"Task '*****@comcast.net - Sending' reported error (0x800CCC78) : 'Cannot send the message. Verify the e-mail address in your account properties. The server responded: 550 5.1.0 Authentication required'"
Any suggestions would be appreiated.