Are your images in your email campaigns failing to display for some people? There are two likely causes for images not displaying by default.
When sending an email campaign add text to a text block in Mailchimp. Saving text as an image will reduce your open and click rates.
Make sure that your Mailchimp email campaign images look great; only add images to image content blocks.
To ensure that your images in email campaigns look their best, the images must be at least 600px wide.