Can I delete and create a new email address

Hi Allister Gourlay,

You may be referring to email aliases whereby you can create email addresses that forward to your iCloud email address.

If so, Add and manage email aliases for iCloud Mail on iCloud.com outlines instructions for the management of these addresses:

"Turn off, turn on, or delete an alias

You can turn an email alias on or off at any time. You can also delete email aliases that you no longer want to use. While turning off an email alias is temporary, deleting it is permanent. When an alias is turned off or deleted, email sent to that alias is returned to the sender.

1. In Mail on iCloud.com, click  at the top of the Mailboxes list, then choose Settings.
2. Click Account, select an iCloud Mail alias in the list, then do any of the following:

• Turn off an alias: Select “Disable alias,” then click Save Changes.
• Turn on an alias: Deselect “Disable alias,” then click Save Changes.
• Delete an alias: Click “Delete alias,” then click Delete.
  • Note: If you have three email aliases and you delete one, you must wait 7 days before you can create a new one."

Regards.