Error Retrieving Site


Thank you for any support provided. I have created a document library on our sharepoint2007 site where I am a sight collection admin. I have installed your client software on my desktop Outlook2007 and entered the URL https://share.yale.edu/departments/ysmworkforcepartners/ProjectEmail/. And do not have any Domain or Proxy settings. My IT support does not believe I need to complete this info. I enabled the outlook sharing in sharepoint an can see the folder but the mail2sharepoint gives me the msg: "Error retrieving site...". Is there somthing I am missing or can say to my IT support to get him to set on sharepoint that will enable your softare to see the library. tx Jim