The mailstats Program
The sendmail program provides the ability to
gather information that can be used to produce valuable statistics.
As you will see, the
S) option (StatusFile) is used
to specify a file into which delivery agent statistics can be saved.
The mailstats(1) program prints a summary of
The statistics File
The sendmail program can maintain an ongoing record of the total number and total sizes of all outgoing and incoming mail messages handled by each delivery agent. This ability is enabled by defining STATUS_FILE in your m4 build file:
/path is the full pathname of the file
into which statistics are saved. Version 8.12
sendmail provides configuration files that
Just declaring the
StatusFile option is not
enough, however, for if the file does not exist (or is unwritable),
sendmail silently ignores that file and does not
save statistics. To avoid this behavior,
sendmail creates an empty file during
Note that the gathering of statistics can be turned off merely by renaming or removing the file.
Viewing Statistics: mailstats
The mailstats program is supplied with the sendmail source distribution to provide a convenient way to print the contents of the statistics file. The output of the mailstats program varies depending on the version of sendmail installed. For V8.12 sendmail the output looks like this:
Statistics from Mon Jan 14 10:56:15 ...