Problems like this come up in day-to-day life and you need to find an easy solution to this. If you are also worried about Comcast mail not working today then you need to solve this with your understanding. This error usually occurs because servers go down in your area and the only solution is to check the server settings. You can also wait for the servers to come back online and then check if you can log in again. This method might easily solve your problem and you can get your mail working.