When Pop3 component is used, the context is always POP3.
However, when Smtp component is used, the context may be somewhat like SEND-00.SMTP-04, which indicates the component is sending a mail message using multiple threads, and the current log entry corresponds to thread #4 (starting from zero). Another example is SEND-00.SMTP-00.POP3 which means the component currently operates in send mail mode, the connection to SMTP server on thread #0 is in progress, and POP-before-SMTP authentication is currently performed as a part of this connection procedure.
Smtp component operates in multi-thread mode (MaxThreadCount is not 1). In this case, many log entries are simultaneously added into the log by multiple threads. In this case, allows the person who's viewing the log to group the log entries by their values.value is especially useful when