Does anyone know how to add a graphic to a notification without using links? I can easily use a link, but when users are outside our firewall, they see a red "x" for the image. I could also place the images outside the firewall; just not sure if anyone has found another way to do this.
That's an interesting questions, especially because PPM doesn't even support attachments in notification. We never tried, but there are MTHML and data URIs (http://en.wikipedia.org/wiki/Data_URI_scheme) that might be an option. But even if one of these works in notifications, it will still greatly depend on the mail client the recipients uses.
It looks like it does not work in Outlook either, or at least the version we use. We also don't use IE8 (still using IE6), so does not work there either due to version, since not supported until IE8. The image we wanted to use also ended up with a value that seemed to be too long to be stored in the database. Thanks for the suggestion though.
The only way to have all/most mail clients to display images in mails, is to have them on a webserver that is accessible external and internal by the same URL. And even then users may have disabled loading images when displaying mails.