Fix: Comcast Outgoing Mail Server Not Working

Is your Comcast email not working on your email program? Then, there might be issues with the outgoing mail server or settings configured for the Comcast email. If you have configured your Comcast email settings in the Outlook 2016 app, try these troubleshooting steps to fix the Comcast Outgoing Mail Server Not Working issue.

Solution 1: Check the account settings

  • Step : 1 First, launch the Outlook app by double-clicking its shortcut icon on the desktop.
  • Step : 2 Next, click the File tab and select Info from the left-side panel.
  • Comcast outgoing mail server not working
  • Step : 3 Click on Account Settings twice.
  • Comcast outgoing mail server not working
  • Step : 4 In the Account Settings window, click the Email tab and choose your Comcast email account.
  • Step : 5 Click the Change button to check the account details.
  • Comcast outgoing mail server not working
  • Step : 6 Ensure that the User Information, Server Information, and Logon Information are correct.
  • Step : 7 Click the More Settings icon to open the Internet Email Settings window.
  • Step : 8 In the Outgoing Server tab, verify if you have selected the My outgoing server (SMTP) requires authentication checkbox.
  • Step : 9 Also, check whether the Use same settings as my incoming mail server radio button has been enabled.
  • Comcast outgoing mail server not working
  • Step : 10 Go to the Advanced tab and check the server port numbers and security type for both incoming and outgoing mail servers.
  • Step : 11 Click OK and then test the account settings.

If the Comcast email outgoing server is not working even after changing the server settings, try the next solution.

Solution 2: Remove and reconfigure your Comcast email

  • Step : 1 Launch the Outlook app and click the File tab at the top-left corner.
  • Step : 2 Select the Info option from the left-side panel and click the Add Account button.
    Comcast outgoing mail server not working
  • Step : 3 On the Auto Account Setup screen, select the Manual setup or additional server types option and click Next.
    Comcast outgoing mail server not working
  • Step : 4 Choose the POP or IMAP option and click Next.
    Comcast outgoing mail server not working
  • Step : 5 Input the User Information, Server Information, and Logon Information.
    Comcast outgoing mail server not working
  • Step : 6 Click on More Settings and select the checkbox to authenticate the outgoing mail server in the Outgoing Server tab.
  • Step : 7 Jump to the Advanced tab and configure the server port numbers and security type for the outgoing and incoming mail servers.
  • Step : 8 Click OK and verify the configured settings.
  • Now, the Comcast outgoing mail server should work normally. We learned how to fix Comcast Outgoing Mail Server Not Working issue.

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