Change your Comcast email password through the Xfinity website

You can change your Comcast email password by logging into your Xfinity account online and updating it in the account settings. The process takes about five minutes and works whether you access your email through webmail, Outlook, Apple Mail, or any other email client. After you change the password, you may need to update it in any email apps you use on your phone or computer.

Start by opening a web browser and going to xfinity.com. Click "Sign In" in the top right corner and enter your Xfinity username and password. Once you are logged in, look for your account name or profile icon in the top right — click it and select "Account Settings" or "Manage Account" from the dropdown menu.

In Account Settings, find the section labeled "Security" or "Password & Security". Click on "Change Password" or "Update Password". You will be asked to enter your current password first, then type your new password twice to confirm it matches. Comcast requires passwords to be at least 8 characters long and include at least one number and one uppercase letter.

Key Takeaways

  • Log into xfinity.com, go to Account Settings, and select the Security or Password section to change your password.
  • Your new password must be at least 8 characters and include at least one number and one uppercase letter.
  • After you change your password, update it in any email apps on your phone or computer within the next few hours.
  • If you cannot remember your current password, use the "Forgot Password" link on the Xfinity sign-in page to reset it first.

Update your password in email apps after changing it online

Once you have changed your password on the Xfinity website, any email apps you use — such as Outlook, Apple Mail, Gmail, or the Comcast Xfinity email app — will stop working within a few hours. The app will either show an error message or stop syncing your email. You do not need to wait for an error; you can update the password right away to avoid interruption.

In most email apps, look for Settings or Preferences in the menu. Find the account settings for your Comcast email address and look for a field labeled "Password" or "Account Password". Delete the old password and type in your new one. Save the changes. The app should reconnect within a minute or two.

On an iPhone or iPad using Apple Mail, go to Settings, scroll down to Mail, tap Accounts, select your Comcast email account, and tap Account. Tap Password and enter your new password. On Android, open Gmail or your email app, tap your profile icon, select "Manage your Google Account" or go directly to your email settings, find your Comcast account, and update the password there.

What to do if you forget your current password

If you do not remember your current Xfinity password, you cannot change it through Account Settings because the system will ask you to confirm your old password first. Instead, use the password reset option on the Xfinity sign-in page.

Go to xfinity.com and click "Sign In". Below the password field, click "Forgot Password?" or "Need Help Signing In?". Xfinity will ask you to verify your identity — you can do this by entering your phone number, email address, or account number, depending on what information you have on hand. You will then receive a code by text, email, or phone call. Enter that code on the next screen and create a new password.

Once you have reset your password this way, you can then log back into your account and change it again if you want a different password, or you can use the new password you just created.

Recover access if you cannot receive verification codes

If you are trying to reset your password but you no longer have access to the phone number or email address associated with your account, you will need to contact Comcast directly. Call Xfinity customer service at 1-800-934-6489. Have your account number, Social Security number, or the phone number on file ready — the representative will verify your identity using this information.

Once the representative confirms who you are, they can reset your password over the phone or send a reset link to an alternate email address you provide. This process usually takes 10 to 15 minutes. After the call, you can log in with your new password and change it again if you prefer a different one.

Passwords that work across Xfinity services

Your Xfinity password controls access to your email, your online account, and any Xfinity apps you use on your phone or computer. When you change your password on the Xfinity website, that change applies to all of these services at once. You do not need to change the password separately for email, for your account portal, or for the Xfinity Stream app.

However, if you use a third-party email app like Outlook or Apple Mail, that app stores its own copy of your password. Changing your Xfinity password does not automatically update it in those apps — you have to do that manually. The same is true if you have set up your Comcast email to forward to another email address or if you use your Comcast email with a smart home device or printer.

Why your email stops working after a password change

Email apps and devices store your password locally so they can check it every time they connect to Comcast's servers. When you change your password on the Xfinity website, the old password no longer works, so the app or device cannot connect anymore. This is a security feature — it means that if someone else knows your old password, they cannot use it to access your email even if they have your username.

Most apps will show an error message like "Password incorrect" or "Authentication failed" when this happens. Some apps, especially older ones, may straightforward stop syncing without showing an obvious error. If your email suddenly stops working and you recently changed your password, updating the password in that app is almost always the solution.

Frequently Asked Questions

How long does it take for a password change to take effect?

Your new password works when ready on the Xfinity website. However, email apps and devices may take up to a few hours to stop accepting your old password. You do not have to wait — you can update the password in your apps right away to avoid any interruption.

Can I change my password from my phone?

Yes. Open a web browser on your phone, go to xfinity.com, sign in, and follow the same steps as on a computer. You can also use the Xfinity mobile app if you have it installed — look for Account Settings in the menu and select Password or Security.

What if I change my password but my email app still will not connect?

Make sure you entered the new password correctly in the app — passwords are case-sensitive, so uppercase and lowercase letters matter. If the password is correct, try signing out of the email account in the app and signing back in. If the problem continues, restart the app or restart your phone.

Do I need to change my password if I only use webmail?

No, not because of the apps. If you only access your email through xfinity.com in a web browser, you do not need to update anything after changing your password. The new password will work the next time you log in.

Can someone access my email if they know my old password?

No. Once you change your password, the old password stops working everywhere — on the website, in apps, and on devices. Even if someone has your old password, they cannot use it to access your email or your Xfinity account.