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:
-->
-C
Read the specified file instead of the default sendmail configuration file.
-c
Try to use submit.cf instead of the default sendmail configuration file.
-f
Read the specified statistics file instead of the statistics file specified in the sendmail configuration file.
-P
Output information in program-readable mode without clearing statistics.
-p
Output information in program-readable mode and clear statistics.
-o
Dont display the name of the mailer in the output.
The mailstats utility exits 0 on success, and >0 if an error occurs.