ContributionsMost RecentMost LikesSolutionsRe: Outlook for Mac Email problem after Cox maintenance I have the same problem. 12/4/19 was the last date I recieved any mail on my MAC. I still receive mail on my iphone. I have an Outlook error code: 150. "An unknown error has occurred in Outlook. Could not retrieve mail." I can send mail fine. My settings on my Cox account are "Incoming Server: pop.cox.net. Use SSL to connect (recommended)" I called Cox tech for help and they said I had to sign up for their Complete Home Service or whatever its called for $10 a month. Sounds like they caused a problem and now want to get all their customers to pay to have it remedied. Doesn't smell right!! I did not sign up for the service. Kevin, please find the answer for all of these faithful Cox customers, including myself. Thank you.