I've recently been working with some computers here in the office and noticed the other day that a few of our employees who are running Windows 7 with Outlook V.14 do not receive attachments that are .jpg. I am trying to send the images in rich text format. There are three weird circumstances when they do receive them which are: 1. If I change the file type from .jpg to .JPG they do receive the attachments 2. If I send in plain text they do receive the attachments 3. If they forward themselves the message which they did not receive the attachments, the attachments magically appear. I am running Mac 10.6.8 and understand that yes I could just send them in plain text format, but would rather send in rich text due to my company signature. Also they are making due by forwarding themselves the emails that they feel are missing attachments, but we are concerned that unless they forward every email to themselves we may miss something important. Hope someone can help with this issue as it is forcing us to waste a lot of time editing settings and double checking emails etc. Regards.