Pop servers no longer showing folders

iPhone mail app no longer shows folders using Comcast account. Xfinity escalated tech support says it is an Apple problem since xfinity web mail shows folders. Apple support says that xfinity no longer supports pop or pop3 and you cannot switch to imax. 

Apple support says to use web mail until the upgrade to yahoo notification. 

is this my only option?

Seems like xfinity could have notified all mail users to stop using Apple Mail. That way hours of time would not be tied up by users and tech support.