HP-UX Mailing Solutions White Paper

NOTE: If you are conversant with the macros in the sendmail.cf file, you can manually

edit the /etc/mail/sendmail.cf file to enable the milter functionality.

9. Restart the Sendmail daemons:

# /sbin/init.d/sendmail stop

# /sbin/init.d/sendmail start

Verifying the Sendmail Configuration

Complete the following checks to verify the Sendmail milter configuration:

• Ensure that the output of the mtail command does not contain any errors or warnings.

• Send a test mail and verify if the mail is delivered.

• Ensure that your filter program is running on the system:

#ps -ef | grep milter_prog

root 6480 5573 1 11:03:37 pts/1 0:00 grep milter

root 6476 1099 0 11:03:30 pts/0 0:00 ./milter_prog -p /var/run/f1.sock

• The milter program can fail if the socket already exists. Therefore, remove the socket (if it

exists) before starting the milter program.

• If you have configured milter properly, milter will be mentioned in some Sendmail log

entries.

Clam-AV Milter Support

Clam AntiVirus is an anti-virus toolkit for HP-UX. The main purpose of this software is the

integration with mail servers (attachment scanning).

The required daemons from the Clam-AV package are as follows:

• A flexible and scalable multi-threaded daemon (clamd)

• A milter program for use with Sendmail (clamav-milter)

• A tool for automatic updating through the Internet (clamav-freshclam)

Figure 22 illustrates the daemons involved in Clam-AV support (Sendmail, clamav-milter,

and clamd), the connecting socket files /var/run/clamav-milter.sock and /var/run/

clamav.sock between the daemons, along with the configuration files for the daemons and

log paths to syslogd. You must start the clamd daemon before the clamav-milter program

and finally start Sendmail, because clamd and clamav-milter create the socket files used for

communication.

Figure 22 Daemons for ClamAV Support