Friday, May 11, 2007

Postfix + ClamAV + MailScanner in OpenSuse 10.2

1) Install the anti virus software (Clamav) –> (here) http://rpm.pbone.net/
rpm -ivh clamav-db-0.88.2-1.i386.rpm
rpm -ivh clamav-devel-0.88.2-1.i386.rpm
rpm -ivh clamav-server-0.88.2-1.i386.rpm
rpm -ivh clamav-0.88.2-1.i386.rpm

/etc/init.d/clamd start

2. Once the anti-virus is install then we need to install the MailScanner software the RPM along with the source files can be found at
http://www.sng.ecs.soton.ac.uk/mailscanner/downloads.shtml

Now get ready to install the mailscanner, this is going to take a long time.

gzip -d MailScanner-4.46.2-2.rpm.tar.gz
tar -xvf MailScanner-4.46.2-2.rpm.tar
cd MailScanner-4.46.2-2
./install.sh

3. In your MailScanner.conf file in /etc/MailScanner, there are 5 settings you need to change. The settings are:

Run As User = postfix
Run As Group = postfix
Incoming Queue Dir = /var/spool/postfix/hold
Outgoing Queue Dir = /var/spool/postfix/incoming
MTA = postfix

4. You will need to ensure that the user “postfix” can write to

/var/spool/MailScanner/incoming and /var/spool/MailScanner/quarantine

chown postfix:postfix /var/spool/MailScanner/incoming
chown postfix:postfix /var/spool/MailScanner/quarantine

5. Edit file MailScanner.conf
Virus Scanners = clamav

6. Edit virus.scanners.conf
clamav /usr/lib/MailScanner/clamav-wrapper /var/lib/clamav

7. Now we need to edit the postfix main.cf file, go all the way to the bottom of the file and add the following
header_checks = regexp:/etc/postfix/header_checks

8. In the file /etc/postfix/header_checks add this line:
/^Received:/ HOLD

9. Set the servers to run on startup and then start them

chkconfig MailScanner on
chkconfig postfix on
chkconfig clamd on

/etc/init.d/Mailscanner start
/etc/init.d/postfix start
/etc/init.d/clamd start

Enjoy

Ninad S

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