After this display, a line totaling the values for all of the mailers is displayed (preceded with a T), separated from the previous information by a line containing only equals (=) characters. Another line preceded with a C lists the number of TCP connections.
The options are as follows:
Read the specified file instead of the default sendmail configuration file.
Try to use submit.cf instead of the default sendmail configuration file.
Read the specified statistics file instead of the statistics file specified in the sendmail configuration file.
Output information in program-readable mode without clearing statistics.
Output information in program-readable mode and clear statistics.
Dont display the name of the mailer in the output.
The mailstats utility exits 0 on success, and >0 if an error occurs.