If you are using the Mustang List
WYSIWYG or a Mustang List template to create your email message, you can easily add images to your emails. If you are not hosting your images on your own server, then you’ll want to first upload your images to the Mustang List Image Directory (go to Messages and click Manage Images). Be sure you note the Image URL of all images you upload to Mustang List for your email; you will need these urls later. (See KB article for detailed instruction on uploading images.)
After you have your message laid out using the HMTL editor in Mustang List in the “Add or Edit Message screen,” place your cursor in the area of your message where you’d like the image to appear. Click the icon for Add/Edit Image (it looks like a tree).
Paste the url of the image into the field for Image URL. This url is the location of the image on your image server or, if you uploaded the image to Mustang List, it’s the location of the image on Mustang List’s server (the Image URL you should’ve noted, as suggested above).
Enter information in the rest of the fields as necessary and click Update to insert the image and save changes. You’ll be returned to the message creation page.