Check the settings by clicking Test Account Settings on the Internet Email Settings screen.How To Set Up Comcast E Mail In Outlook Express. Change the Outgoing Server (SMTP) to port 587 and change 'Use this following type of encrypted connection to None then click OK. Enable Xfinity Comcast Mail Servers POP SMTP For Use With Outlook And Other Mail Browsers. If you want to instead set up your email using POP3, select the POP. In the Advanced Tab change the Incoming Server (POP3) to port 110 and make sure the box next to 'This server requires an encrypted connection (SSL) is NOT checked. If you want to set up your email using IMAP (Recommended), select the IMAP account type.We of course triple checked our mail server settings in Microsoft Outlook. In the Outgoing Server tab, check the box marked My outgoing server (SMTP) requires authentication and ensure the Use same settings as my incoming mail server is selected If you are having trouble sending email outbound with Outlook on Comcast.Fill in all fields for User, Server, and Logon Information Incoming mail server: Outgoing mail server:.Check the Manually configure settings or additional server types box and click Next Check settings when your Comcast account is connected to a third-party email service such as Gmail, Yahoo, or Outlook.To edit Account Settings, select the email account and click Change(skip to step 5) Now from the drop-down menu list select POP3 and enter cast. From the Tools menu, select Account Settings Choose a username to be added with the email that will be used in the following address.The following are the directions for setting up Comcast email in Outlook 2007 :