Image Best Practices in Marketing Cloud
Images used in Marketing Cloud emails need to be formatted to a certain size before being uploaded to Marketing Cloud. If you don't, the email might appear fine in Marketing Cloud but when it gets delivered to inboxes, it may be formatted poorly. Recipients of poorly formatted emails are less likely to engage with the content and more likely to unsubscribe.
While the basic rule is to never upload an image wider than 600 pixels wide, the examples below serve as a guide to help you determine what size images are appropriate for your custom-designed email. If you have additional questions, contact your eComm specialist.
- If a large image is uploaded to Marketing Cloud (e.g. 1200 px wide), that's the image size that will display in some recipients' inboxes, forcing them to scroll right to read the content. It will also take twice as long to download.