Hi, Luann. I am an independent advisor, trying to help other users in the Community with my experience in Microsoft products. Please note that I am a user like you and don't work directly for Microsoft.
Yes, you can add your Comcast Email to the new Outlook. Here’s a general guide on how to do it:
"Open Outlook and click on the File menu. Select Add Account. Enter your Comcast email address and click Connect. Choose IMAP as the account type. Enter imap.comcast.net for the Incoming mail server. Enter smtp.comcast.net for the Outgoing mail server. Enter your Comcast email address as the username. Type in your password. Use 993 for the incoming port and 465 for the outgoing port. Ensure both Use SSL to connect options are checked. Click Add Account or Finish.
Make sure to allow access to third-party programs on the Xfinity Email website before setting up your Comcast.net email in Outlook"
https://www.xfinity.com/support/articles/configure-outlook-express-xfinity-internet?view=app
DISCLAIMER: This is a non-Microsoft site. The page seems to provide accurate and reliable information. Beware of advertisements on the site that may advertise products frequently classified as PUPs (Potentially Unwanted products). Please do thorough research on any product advertised on the site before downloading and installing it.
Regards Femi