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Outlook sync with Comcast

Robert Geiss 0 Reputation points
2026-04-18T16:39:45.4+00:00

I cannot get Outlook for Windows 11 to sync with my Comcast email account

Outlook | Windows | New Outlook for Windows | For home

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  1. Ben4724 3,660 Reputation points Independent Advisor
    2026-04-18T17:21:44.4533333+00:00

    Hi there!

    With regards to this issue, I suggest to double check the IMAP or email settings you are using when connecting your account. You can check with Comcast to get the correct SMTP settings to connect your account to the mail app.

    Also, there should be a settings on your Comcast email provider to "Allow access to third-party email programs" which should be enabled in order to connect your account to the app. In case same issue persists, I suggest try reaching out to Comcast first to see if all the settings of your account is properly configured before setting it up again on the mail app.

    Don't hesitate to post back here in the community if you have questions and we fellow members will do our best to help.

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  2. AI answer

    2026-04-18T16:39:52.7566667+00:00

    New Outlook for Windows can sync non-Microsoft accounts (including IMAP accounts like Comcast) by connecting them to the Microsoft Cloud. When this is set up correctly, Outlook keeps a copy of the Comcast mailbox (email, calendar, contacts if available) synchronized between Comcast’s servers and Microsoft’s data centers so that Outlook can work with it like a Microsoft 365 account.

    To get Comcast mail syncing in new Outlook for Windows, ensure the Comcast account is added as a supported non-Microsoft account type (typically IMAP) in new Outlook, not as a POP-only or unsupported type. Once added, Outlook will maintain a synchronized copy of the mailbox in the Microsoft Cloud; the Comcast webmail and any Comcast apps remain unchanged.

    If sync still fails after adding the account, verify in Comcast’s documentation that IMAP is enabled for the mailbox and that the correct IMAP settings are used when adding the account in Outlook. If the account is added as POP, calendar and contacts will not sync; use IMAP instead.

    If Outlook previously worked and suddenly stopped syncing, confirm that the Outlook app is up to date so it can use the modern authentication and cloud-sync model described in the references.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

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