Local Listener AS3 Service reference

My External Address
The IP address used to access your computer or server from the Internet. This is the address where the VersaLexCleo HarmonyCleo VLTraderCleo LexiCom application is installed and running. 
This can be either a fully qualified host name (recommended) or a static visible external IP address.
You can use the Set Address button to set your external IP address.
Contact your systems administrator if you do not know your external IP address or fully qualified host name.
Alternatively, select the Use ‘My External Address’ From AS2 Service check box. The value from the AS2 Service panel will automatically be set in this field. This is the default setting.
Note: Since the External Address is only used by FTP Server, LexiCom users will always use the same External Address as defined for AS2 and will be able to change it.
MDN Storage Folder
The folder where Message Disposition Notifications (MDNs) are stored. By default this directory is pre-defined to be a subdirectory under the VersaLexCleo HarmonyCleo VLTraderCleo LexiCom directory tree. Click , navigate to a new path and folder, and click Apply.
Retain Message ID History
The number of days message ID history is retained for checking for and reporting duplicate messages (with the same Message-ID header value) from your trading partners. The default is 5 days.