We scan lots of documents in as PDF files on our iR5055. Emailing these scans within our domain works fine, but sending to outside addresses doesn't. Using Exchange 2003. When sending to a Road Runner account, I see the outbound mail sitting in Exchange's Road Runner send que until it times out. Road Runner never accepts the email. When sending to an AOL account, the emai goes through, but the PDF is corrupted.
With so much recent malware and spyware being sent via PDF's, it makes sense that the ISP's are being very careful. What is it about the iR created PDF's that is causing the problems with these outside ISP's?