We have an Exchange 2003 server environment with OWA running with SSL. we just had a user tell us that he could not open PDF files. I tried this from home as well, and no luck. The attachment has the warning Attachments can contain viruses...and may not be displayed correctly. The filename is .pdf, but when you open it, it opens it in IE and just jibberish. I tried to disable HTTP 1 and also edit preferences in Adobe Reader and have also tried to save the file locally first, but still no luck. I also checked the Level 1 and Type 2 attachments and pdf is not listed so by default it's not blocked. What else?
Thank you in advance.