Hi, I found out in my tests that microsoft exchange 2003 does not forward emails with .docx attachements to external smtp: addresses. The same problem exists for all office 2007 xml-formats (docx, xlsx, pptx) Is there some way to workaround, update or setting I can change to get this to work? Br, P33tu

Exchange does not prevent the sending of docx files. I would examine your antivirus or other filtering solution. In your environment, does the message simply come through without an attachment? or not at all? Mike Crowley A+, Network+, Security+, MCT, MCSE, MCTS, MCITP: Enterprise Administrator / Messaging Administrator

Hi,Is there any NDR in your system?you can also find some helpful information inhttp://social.technet.microsoft.com/Forums/en-US/exchangesvrgeneral/thread/88a28fdc-c085-44ad-9e6a-9c80b8b2894f.Please check your AV settings for ZIP files.You can send a mail with ZIP file to test.Frank Wang