I am Ajax martin and I and my teammates work in Contact emails service...Imagine a scenario where your boss tells you to check your email and respond to an urgent business report. You try and log in to your Comcast email account as soon as possible so that you can send your reply. However, no matter where you look, in all the email folders, you cannot find the email. 

https://www.contact-emails.com/comcast-emails-are-missing-or-deleted-automatically/