Use the WebAdmin Interface to configure the PIPE module. Open the Mail pages in the Settings realm, then open the PIPE page.
Log: Use the Log setting to specify what kind of information the PIPE module should put in the Server Log. Usually you should use the Major (message transfer reports) or Problems (message transfer and non-fatal errors) levels. But when you experience problems with the PIPE module, you may want to set the Log Level setting to Low-Level or All Info: in this case protocol-level or link-level details will be recorded in the System Log as well. When the problem is solved, set the Log Level setting to its regular value, otherwise your System Log files will grow in size very quickly.
The PIPE module records in the System Log are marked with the PIPE tag.
Processors: This option specifies the number of threads used to deliver messages. If some of your external applications are slow, you may want to use several PIPE delivery threads, so several messages can be processed at the same time.
Application Directory: This option specifies the directory with the applications the PIPE module can launch. If an empty string is specified for this option, all messages directed to the PIPE module are rejected.
Processing Time Limit: This option limits the time an external application uses to process a message. If an external application does not complete within the specified period of time, the application process is interrupted and the message is rejected.
Check Submitted Directory This option specifies how often the PIPE module should scan the Submitted directory and deliver the .sub files stored there.