Logging
You can select several types of messages to be logged for the SMTP Sending service: critical messages, error messages, warning messages, informational messages and protocol communication. To select which of these are to be logged, click the Log Level slider and move it to the left or to the right. The selected types of messages will change color from whiter to gray.
Log files can be stored using your internal log files, your system's log files or within the log files located on a remote system. Use the Log drop-down menu to select where to have your log files saved.
Thread Management
Thread management allows you to set different numbers of processing threads for the SMTP Sending service, depending on your traffic load. First, using the up and down arrows, set a number of threads to be allotted when the SMTP Sending service is started. To have a different number of threads for peak periods, check the overload option and use the up and down arrows to choose the thread number.
When you are done configuring these parameters, remember to hit the Save Configuration button to preserve your changes.