I am having an ongoing issue with MS outlook 2007 attachments on my SBS 2008 network. Whenever I try to attach a file (pdf,6k) it takes ages for the attachment to appear in the email. The file I am trying to attach resides on my desktop so I know that it is not an issue with our file server. About 50% of our users (winXP) are experiencing this problem, some are having to wait 25mins to attach a 10mb file. Users are on mixed computers in terms of age and hardware so I don’t think that it is an issue there. General network performance is pretty good at the moment and nothing is glaringly obvious in the SBS event log. Exchange is also working fine at the moment.
I have tried a few things such as deleting the users temp internet files in the hope that I clear out the outlook .olk folder. I have also tried turning off exchange cached mode but both attempts have so far proved fruitless. Interestingly I created a new test user account and configured a new mail box. When I tried to attach a document under the new user account it uploaded just fine.
I have read that I could just delete the user profile from the local machine and then start again. While I am prepared to do this I would prefer to solve this issue without taking such drastic action.
Can anyone help?