This is a glitch that happens randomly, but often.
When we upload an image and make it bigger (big enough to fulfill the 600 pixel width) it does not always save at the 600 pixel wdith. It gets a little bit smaller, but noticeable enough that it messes up the email.
1st picture shows you that there are 3 images (padding is added just to separate the images)
2nd picture shows you the result after it is saved and refreshed/tested.
Thanks for reaching out about this! We're sorry your images aren't staying the width you're selecting. We'd definitely like to take a closer look and see what's going on. Please email us at
social_support(at)constantcontact(dot)com and include your username, the name of the email campaign, the name of the image, the email client you are testing it to (i.e. Outlook, Yahoo, etc.), and a reference to this post so we can further troubleshoot. Thanks!