How to Delete a Comcast (Xfinity) Email Address

Last updated: July 6, 2026 · Verified against the current process

Quick answer A Comcast.net address is part of your Xfinity account. To remove a secondary email, sign in to your Xfinity account, open user management, select that user, and delete it. The primary ID goes away when you close the whole Xfinity account. If you're cancelling internet service, note the 90-day rule: you keep the mailbox only if you logged in within 90 days before disconnecting and keep signing in every 90 days. Back up over IMAP first.

"Deleting a Comcast email" means one of two different things, and the right steps depend on which you have:

There's also the common case of cancelling Xfinity internet and wanting to keep (or intentionally lose) the address. Comcast's login-based retention rule governs that, and it's easy to trip over.

Back up your Comcast mail first

Comcast webmail (at connect.xfinity.com) supports IMAP, so the reliable backup is to download everything into a desktop client while the mailbox is still active.

  1. Add the account to a desktop client

    In Thunderbird, Apple Mail, or Outlook, add a new IMAP account using Comcast's published mail-server settings (search Xfinity's help for "email client settings" for the current server names and ports). Sign in with your full Comcast.net address and password.

  2. Let every folder sync

    Wait for Inbox, Sent, and any custom folders to download in full. For a permanent local copy, drag important messages into a "Local Folders" store so they survive even after the server mailbox is gone.

  3. Save contacts

    In webmail, open your address book and look for an export option to save contacts as a CSV or vCard file.

Move accounts off the address

Change the login or recovery email on anything important that uses your Comcast.net address — banks, your password manager, shopping, and other email accounts. Search the mailbox for "verify", "statement", and "welcome" to find services you've forgotten. Do this before the mailbox is deactivated; afterward, password-reset emails bounce and you can be locked out.

Tip for your next address ISP email ties you to a provider you may one day leave. A free webmail account plus email aliases keeps your address portable and your inbox cleaner.

The 90-day access rule explained

Comcast allows former customers to keep a Comcast.net email address after cancelling service, but only under specific conditions. As Comcast states its policy, you must have logged into the email account within 90 days before you disconnected service, and you must continue to sign in at least once every 90 days afterward to keep it active. If the mailbox goes 90 days without a login, it is deactivated and its contents are deleted.

Note what this does not include: after you cancel service, some features (like sending mail, or the Xfinity Voice/voicemail tie-ins) may be limited, and Comcast can change the policy. Treat retained ISP email as temporary, and never rely on it as the recovery address for a bank or your password manager.

Delete a secondary email address

Deleting a user erases its mailbox Removing a secondary user deletes that person's email and stored messages. Make sure they've backed up anything they need before you continue.
  1. Sign in as the primary account holder

    Go to xfinity.com and sign in with the primary account, which has permission to manage other users. Secondary users can't delete themselves.

  2. Open account and user management

    Find the Account area and look for Users or "Manage users / Add or remove users." Comcast reshapes this dashboard periodically, so look for the section that lists everyone on the account.

  3. Select the user to remove

    Click the secondary user (identified by their Comcast.net address), then choose the option to remove or delete that user.

  4. Confirm

    Approve the removal. The address stops working and its webmail contents are deleted.

Removing the primary address

The primary Comcast.net ID is the account's main username — it can't be deleted on its own while the Xfinity account is open. To remove it you close the whole account, which you do by contacting Comcast/Xfinity to cancel service. If you're switching providers but want to keep the primary email as free webmail, don't ask to delete it: instead, make sure you satisfy the 90-day login rule above and keep signing in.

If you specifically want the primary address gone (for privacy or to stop impersonation risk), tell the Comcast representative when you cancel that you want the email account deactivated as well, and confirm it in your final account paperwork.

Frequently asked questions

What happens to my Comcast email if I cancel Xfinity?

Comcast lets former customers keep a Comcast.net address only if they logged into it within 90 days before disconnecting service, and then keep signing in at least once every 90 days. Miss that window and the mailbox is deactivated and its contents deleted.

How do I permanently delete a Comcast.net email address?

If it's a secondary user, sign in to your Xfinity account, open user management, select that user, and remove it. The primary ID is tied to the Xfinity account and is removed when you close the whole account with Comcast.

Can I keep my Comcast email after switching internet providers?

Yes, if you meet the login requirement — log into the mailbox before you disconnect and keep signing in at least once every 90 days. It becomes free webmail, but migrate important accounts off it anyway, because Comcast can change this policy.

How do I back up my Comcast email before deleting it?

Connect the mailbox to Thunderbird or Outlook using Comcast's IMAP settings and let it download every folder to your computer. Do this while the account is still active, because access ends when the mailbox is deactivated.