To add your own images to phish templates, you need to use the Upload Image option within the CKEditor. 

This uploads the images to the server so that they display correctly when emails are received in end users' inboxes. 

Steps:

• Click on the Upload Image icon within the CKEditor.

• Next, click the Upload tab.
• Choose a file and click Send it to the Server.
• Once returned to the Image Info tab, you can edit the image size. 
• Click OK when you are ready to insert the image.

⚠️ Note: You cannot add external images via a URL within the HTML, such as (src=http://… )