EMAIL not Syncing on any device - Customer Support is not existent for email. No communication from Xfinity on the widespread problem

Tested both desktop Outlook app and Samsung email app.  Also installed Outlook app on cell and not able to connect to Comcast IMAP server.

This problem has been happening since yesterday.  Email has not synced since yesterday. Error message stating it cannot connect to server.  

We have been customer for over 15 years.  This is the 1st time we have had this problem. And it appears that other Comcast customers are having this problem as well.