I have configured the SMTP settings, and the connection tested successfull in the Administration Panel. When I right click a file and seelct "Web Link" in the HTTP web client, I receive the following message:
Please specify an SMTP configuration for this domain.
Also, in the Domain Log I have noticed the following message:
An error arose on http port 80 (error code: 121)
The FTP Server is behind a firewall, and the each port that is needed is relayed to the FTP Server via a static NAT.
The FTP Server is installed on a Windows XP SP3 PC.