Comcast not available on iPad, iphone

I cannot send or receive Comcast email on my iPhone or iPad. I updated my primary email password (no longer a Comcast user as not available in location moved to 5 years ago). My secondary email, which is what I use still does not work. Other secondary email does work. 

cleared cache. Tried inputting password on both iPad and iPhone. Deleted account on iPhone. When tried to add Comcast email, said Comcast was not responding   

when I check email, error message is either password needs to be entere OR cannot get email, Comcast is not available.