postfix with bitdefender-scanner

In this post i'll describe to you, how to scan emails using postfix and BitDefender-scanner.

This will help you scan and clean all incoming email traffic to your server for viruses.

Nevertheless, this sollution is not a fast one(and it will scan only the incoming mail), because for each and every mail, the procmail filter will send the eml to the bitdefender-scanner.

In order to increase speed, i recommand to use BitDefender for mail servers
, and integrate it with postfix or other favorite mta.

Bitdefender-scanner it is very easy to install.The package will cam as, rpm, deb and tar.
Just type in your console sh -x BitDefender-scanner.rpm/deb/tar.run and follow the install procedure.

After the install, I recommend to update your scanner.To do this, go to /opt/BitDefender-scanner/bin, and type ./bdscan --update

If you LDA in postfix is procmail, then you don't need to make any modifications to your main.cf file.If not just add this line in /etc/postfix/main.cf

mailbox_command = /usr/bin/procmail -a "$EXTENSION"

In order to delivery emails in ~/Maildir add this line in main.cf

home_mailbox = Maildir/



After this, restart postfix server.

In your home directory, edit .procmailrc file (if is not there, echo > .procmailrc).Offcourse you can enable procmailrc system wide (write this file in /etc)

Add the following lines in .procmailrc

$ cat .procmailrc
PATH=/usr/local/bin:/usr/bin:/bin
MAILDIR=$HOME/Maildir/
DEFAULT=$MAILDIR
LOGFILE=$MAILDIR/procmail.log
FILE=`mktemp`

:0 fw
|cat > $FILE; if bdscan $FILE &>/dev/null; then formail -a "X-BDScan:
clean" <$FILE; else formail -a "X-BDScan: infected" <$FILE; fi; rm -f $FILE

Offcourse, you must modify MAILDIR variable and bdscan must be in your path.

This will add in your email, a header that contain X-BDScan:infected/clean acording to the bdscan result.

If you want the infected mail to be deleted just add in .procmailrc the following line

:0
* ^X-BDScan: infected
/dev/null

Or else, if you want to move infected files to an local directory add in .procmailrc

:0
* ^X-BDScan: infected
Maildir/infected


If your postfix server is using another LDA, but it is using .forward files, a sollutins per user, not system wide is to add a .forward file in your home dir just like this

$ cat .forward
|/usr/bin/procmail

Well, this is it :)

Enjoy a free virus email.

Thanks to the BitDefender team for making this possible