đ¨ Comcast Email Is Migrating to Yahoo: What It Means for Outlook Users
Starting in June 2025, Comcast has begun transitioning all @comcast.net email accounts to Yahoo Mail. This change affects how your email syncs in Outlook, Thunderbird, and other third-party clients. If you’re seeing new credential errors or sync delays, you’re not alone.
Here’s what you need to knowâand how to fix it.
đŚ Whatâs Changing?
- Comcast is shutting down its legacy email servers and moving all accounts to Yahoo Mail by June 2026.
- Youâll receive two official emails from Comcast: one announcing the migration, and another asking you to accept Yahooâs Terms of Service.
- Once migrated, your email will be hosted by Yahooâeven though your address still ends in
@comcast.net.
đŹ New IMAP/SMTP Settings for Yahoo Mail
Once your account is migrated, update your Outlook settings as follows:
| Protocol | Server | Port | SSL | Authentication |
|---|---|---|---|---|
| IMAP | imap.mail.yahoo.com | 993 | Yes | Yes |
| SMTP | smtp.mail.yahoo.com | 465 or 587 | Yes | Yes (App Password) |
Important: Youâll need to generate an App Password in your Yahoo account to use with Outlook or Thunderbird.
đ ď¸ Still Having Sync Issues?
If Outlook still wonât sync after updating your settings, try this proven fix:
đ Follow this guide to delete your RoamCache folder and reset Outlookâs cached credentials.
đ Watch for Phishing
- Only accept the migration via official Comcast emails.
- After migration, log in at login.yahoo.com using your Comcast email.
- Look for the verified Xfinity logo in Yahoo Mail to confirm authenticity.
đ§ Need Help?
As always, Iâm here to help Memphis clients get their email working againâfast, secure, and without the runaround. If youâre stuck, reach out and Iâll get you sorted.
âMike, your local Memphis PC Guy