I have one user here that is having incoming pdf attachments get corrupted in Outlook 2010. When she tries to open the file, it gives the error "Adobe Reader could not open filename.pdf because it is either not a supported file type or because the file has been damaged (for example, it was sent as an email attachment and wasn't correctly decoded)." I can open the pdf files in her webmail, and I also installed another mail client which can open the same email attachment fine. It is obviously something about Outlook 2010 that is corrupting the pdf. I have attached a comparison of email headers from a good email and a corrupt email, as well as a comparison of the content of a good pdf file vs a corrupt one. Any input on this would be greatly appreciated. Thanks for looking!