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HP-UX 11i Version 3: February 2007

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mailstats — print mail traffic statistics


mailstats [-C cffile] [-f stfile] [-o] [-p]


mailstats reads and interprets the sendmail statistics file, and then prints out the mail traffic statistics. The statistics file is the one set by the StatusFile option in the /etc/mail/sendmail.cf. The default statistics file is /etc/mail/sendmail.st. If the statistics file exists, sendmail collects statistics about your mail traffic and stores them in that file. This file does not grow.

Statistics are gathered on a per-mailer basis for each mailer defined in the sendmail configuration file. Statistics are kept on the number of messages and the number of bytes for all inbound and outbound traffic.

The mailstats utility displays the time at which statistics collection was started on the first line. Then, the statistics of each mailer is displayed on a single line, each with the following white space separated fields (see the "EXAMPLES" section below):


The mailer number.


Number of messages from the mailer.


Kbytes from the mailer.


Number of messages to the mailer.


Kbytes to the mailer.


Number of messages rejected.


Number of messages discarded.


The name of the mailer.

After this display, a line totaling the values for all of the mailers is displayed, separated from the previous information by a line containing only equals (``='') characters.


mailstats can be used by privileged users only.


The options are as follows:

-C cffile

Read the specified cffile instead of the default /etc/mail/sendmail.cf file.

-f stfile

Read the specified statistics file, stfile, instead of the statistics file specified in the /etc/mail/sendmail.cf file.


Do not display the name of the mailer in the output.


Output information in program-readable mode and clear statistics.

To clear the statistics file, execute, as root:

cp /dev/null statistics-file


The mailstats utility exits with 0 on success, and >0 if an error occurs.


mailstats generates error messages if the statistics file is not accessible or if the size of the statistics file has changed. Error messages are:

mailstats: file size changed

Either statistics-file is zero length, meaning that no mail has been transferred since it was cleared out, or its size has changed. Since the size of this file is supposed to remain constant, any change in size means that the file is invalid.

mailstats: statistics-file: No such file or directory

The statistics file does not exist.

mailstats: statistics-file: Permission denied

The statistics file's permissions are set so that you cannot read it.


Here is a typical example of mailstats output:

Statistics from Thu Jul 11 14:12:40 1996 M msgsfr bytes_from msgsto bytes_to msgsrej msgsdis Mailer 0 0 0K 3 4K 0 0 prog 3 3 4K 0 0K 0 0 local 5 2 1K 11 11K 4 0 esmtp ============================================================= T 13 13K 14 15K 4 0

This example shows that mailers 0, 3 and 5 have handled the given amounts of mail traffic since Thursday, Jul 11th. Specifically, sendmail has sent 11 messages containing 11 kilobytes via mailer esmtp (M 5), but has 4 messages rejected via mailer esmtp (M 5).


mailstats was developed by the University of California, Berkeley.



default mail traffic statistics file


sendmail configuration file



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