Irrespective of the device you are using, make sure to have proper and stable internet connection. Even with unstable internet connection users might trigger email issues. So, whenever you encounter with Comcast mail not working today, you need to check whether the device is properly connected to the internet.
Apart from this, users need to check if the Comcast email server is down. There are times when users deal with the issue of email server is down and they repeatedly try to access Comcast email account. In such cases, users can do nothing apart from waiting for the server to go up and running properly.