IMAP not receiving emails starting this week

Not receiving emails using imap acct setup. outgoing server smtp.comcast.net, SSL,Password Auth, Server Port 465. (587 didn’t work)

I am able to send emails on my iphone and Web. Just not receiving emails on my iphone or on my acct with xfinity web.

I've testing sending emails from my gmail account which works fine.

My imap acct has worked previously. But, it has been acting up in recent days with very slow response times (ie not getting emails for 20 mins).

I have tried recreating my account, still doesnt work. 

Is there a server problem/outage today?