If images that are not embedded in the newsletter but are retrieved from a server or external location, they can get blocked by the e-mail client. This is even a default functionality in Outlook and Windows Mail. Your users will have to find and select the "unblock" message or button in the e-mail client and click it so they can see all images.
In most e-mail clients the message will be something like these examples:
- Images are not displayed. - Display images below
- Images and other external content in HTML e-mail are blocked. Click here to show all images
This is not a ccNewsletter bug!
