Originally Posted by MommyOf3cats
One cause of red X's is that the files may not be in RGB format. RGB (Red Green Blue) are the colors your monitor is comprised of (so to speak, I'm sure it's far more technical than that but I don't know a better way to explain it since I don't know myself! :) ) Anyhow if files were saved in anything other than RGB format they will show up as a red X. I'm a graphic designer and I often create files in CMYK format since they are for print (and not for web) and if I want to post it on the web and forget to save it as an RGB file first, it shows up as a red X. So that question about how they are sent could be right because of how they may have been saved in the first place. If that newsletter was originally created for print (and then converted for the web) the images may not have been converted to RGB. Now was that long and boring ?? :)