Images can be uploaded from the Design step of the Campaign Builder and are then stored in the File Manager.

Below, you'll learn some troubleshooting tips for uploading an image and getting the image to display in inboxes.

In this article:

Images Won't Upload

  • We recommend a maximum file size of 1MB per image. If you can't upload an image, check the file size to be sure it's not too large.
  • Images should not contain spaces or special characters in the file name, as this can cause upload issues. Some email clients, like Gmail, won't even display images that contain spaces or special characters in the file name. Remove the space or replace them with underscores.
  • If you upload an image from your own server to your campaign via a URL, make sure the image's file extension (JPG, PNG, GIF) is in the URL.
  • Internet security programs will sometimes block the image upload layer. If you aren't able to see the image upload tool, can't get an upload to work, and the items listed above aren't an issue, this is like what is causing the problem. To fix this, set the MailChimp domain as a trusted domain with your internet security program or firewall.

Images Don't Display Correctly

If your image uploaded but isn't displaying correctly, there are a few things that could cause this to happen.

  • Images used in email templates need to be formatted as RGB for web display. Images formatted in CMYK for print won't render in certain browsers.
  • Outlook sometimes experiences caching issues that prevent images from displaying. If your image looks broken in Outlook or is simply missing, reboot your computer to clear Outlook's cache.
  • Some email applications block images by default and require the user to choose to display images. MailChimp is not able to bypass or influence this security feature in order to get images to display. Ask your recipients to add your email address to their address book to increase the chances that their email client will display your images.
  • When digital cameras and phones are used to take pictures, they can add Exif data to those images. Exif data can store an orientation tag that specifies the position of the camera, such as if it was sideways or upside-down, when the photo was taken. While these images will display properly within MailChimp, they may display incorrectly outside the MailChimp editor depending on how the browser or email client handles the orientation tags. Editing or removing Exif data generally requires a specialized photo editor or metadata tool.

Broken Images

When you code HTML email, you should use "absolute paths" for your images, so that they are downloaded from your web server when the email is opened. Images are never attached with your email, and they can't be embedded in the message. They're always hosted on a server, then downloaded when the email is opened.

If images in your campaign appear broken, there are a few things to consider to make sure images display as expected.

  • Don't host images used in email campaigns on a free image hosting site or free website account. These systems often block outside links to images they host to keep their bandwidth costs down. It's always best to host the images on your own server when providing your own HTML for campaigns.
  • The image tags in the HTML code need to use absolute paths to download the image files from your web server. Make sure that all the image tags point to existing hosted image files.
  • Make sure the images in your campaign are not being hosted on a secure server that requires a login and password.
  • Some email applications block images by default and require the user to choose to display images. MailChimp is not able to bypass or influence this security feature in order to get images to display. Ask your recipients to add your email address to their address book to increase the chances that their email client will display your images.

Additional Troubleshooting Steps

Keep in mind that the web is set to display best at 72dpi. When you resize an image in our editor, it compresses a large chunk of data, which blurs the image as it gets smaller.

If your images get blurry when you upload and resize them, then you've over-reduced what the image could support. The best way to fix this problem is to alter your master graphic so it's closer to the correct size before you upload it. This should keep your image appearance clean and blur-free when you place it in your email.

If you're having a problem with fonts being unreadable in your resized graphic, then you've over-reduced what the font in your image can support. Again, the best way to fix this problem is to make your graphic as close to the correct size before you upload.

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