05-20-2008, 03:09 PM
Ok, I found the whole problem, from an article by the great Joe Kissell
A vast majority of my attachments are done through the above methods, so that there is the issue. From here on out, I will only drag in icons of images.
If you paste an image into a message or drag & drop an image from another window (say, a Web browser), Mail converts the raw image data to an attachment in TIFF format. On the other hand, if you drag & drop the icon of an image file (or use the Attach button to locate the file using the file browser), Mail leaves the attached image in its original format. This difference is significant, because although most email clients can display JPEG images just fine, support for TIFF - especially in non-Mac email clients - is less common. If possible, I suggest attaching image files as opposed to pasting or dragging in raw image data.
A vast majority of my attachments are done through the above methods, so that there is the issue. From here on out, I will only drag in icons of images.