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Aceq2jot's avatar
Aceq2jot
Occasional Reader
Nov 05, 2025

Comcast email transition to Yahoo

So here is my problem and I have been battling this for 5 days now and Xfinity and Yahoo support keep striking out. I can access my account just fine in Outlook Classic. If I slide the slide over to the new Outlook nothing gets transferred or setup. If I try and add my account manually using an app password it gets to a screen where it states syncing with one drive then I get a screen where it fails and states I need a App Password. I have put in the password multiple times and it seems there is issue is with syncing the mail with one drive in the new Outlook.

 

office 365
outlook

1 Reply

  • Kidd_Ip's avatar
    Kidd_Ip
    MVP
    Nov 06, 2025

    See whether below can help:

     

    1. Use Outlook Classic
    •    Since it works reliably with Yahoo’s app password, stick with it until Microsoft and Yahoo resolve the sync issue.
    •    You can disable the “Try the new Outlook” toggle to stay in Classic mode.
    2. Try Adding the Account via IMAP in New Outlook (Advanced Setup)
    •    Go to New Outlook > Add Account > Advanced Setup > IMAP
    •    Use these settings: 
    o    Incoming server: imap.mail.yahoo.com, Port: 993, SSL: Yes
    o    Outgoing server: smtp.mail.yahoo.com, Port: 465 or 587, SSL: Yes
    o    Username: your full Comcast.net email
    o    Password: Yahoo app password (not your regular password)
    3. Generate a Fresh App Password in Yahoo
    •    Go to your Yahoo account security settings
    •    Generate a new app password specifically for Outlook
    •    Use this new password when setting up the account
    4. Avoid OAuth Setup for Now
    •    The new Outlook tries to use OAuth for Yahoo, which may not be fully supported for Comcast.net aliases.
    •    Stick to manual IMAP setup with app password until OAuth integration is stabilized.

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