using the mail app with Comcast email
Comcast has discontinued it's App for email and now I find myself needing to use the mail app in my iPhone 11 and now when I get my email if I read it, it disappears from my inbox. I also signed in to the Web version on my computer and the inbox is empty so it isn't leaving a copy of mail on server and I am not able to locate a setting in my phone to make sure that happens. Please help
iPhone 11