Hi I meet strange issue. Some of our users connect to exchange 2003 by owa. They can logon owa well. If they want to open attachment , they get credential prompt. They should fill in username and password again. It doesn’t seem to owa function. Do I miss some option?

Hi, This should explain why this happens: http://social.technet.microsoft.com/Forums/en-US/exchangesvrgeneral/thread/e6148098-4cc6-488d-a276-8f1269396f4d Leif