An email address can be linked to an account on Namecheap by following these steps:
1. Log in to your Namecheap account.
2. Click the link icon in the top left corner of the page.
3. Click the “Link Accounts” link.
4. Select the email address you would like to link to your Namecheap account.
5. Enter the verification code that was sent to the email address when you registered for the Namecheap account.
6. Click the “Link Accounts” button.
7. Your account will now be linked to the email address.
You can now use the linked account to make purchases and manage your account information. To unlink your account, click the “Unlink Accounts” link in the top right corner of the page and enter the verification code that was sent to the email address when you registered for your Namecheap account.