We are using NT 4.0 pak 4. With exchange 5.5. We use Elron Firewall. The mail server is in the firewall. We have a WAN with three domains (webserver, olc-net, and olc_admin) The exchange server is on the webserver. The exchange server is located in the LRC. We are using Outlook 2000 and Outlook Express. The people having the problem or in another building, connected with 100mbit fiber transciver. The people in the other building can surf fine but cannot send attachments. People in the LRC can surf and can send attachments. People next door are logging on to olc-net, and olc_admin. I think there is a one way trust relationship with olc_admin, but olc-net is both. What can be the problem? Can someone give phone support in this matter?
