I have a form that I've uploaded to SharePoint, it submits to a form library and a database. The SharePoint site and the form are being accessed by two different groups of end users, one group has to come through a firewall the other group does not. The form works for those users who do not have to cross the firewall, the other group is having difficulty accessing the form. They can get to SharePoint (via port 80), but cannot get to the form or the DB the form is calling ... it appears that the port is currently blocked. Can anyone tell me what port infopath uses? Note: This is not a browser based form.