MailScanner(8)			     Mail			MailScanner(8)

NAME
       MailScanner - Virus/Spam Scanner for Sendmail, Exim and Postfix

SYNOPSIS
       MailScanner [-v] [configfile]

DESCRIPTION
       MailScanner  starts  the	 main MailScanner process. [configfile] should
       point  to  a  valid  MailScanner	 configuration	file  (see   MailScan‐
       ner.conf(5) for details). The default location for this file depends on
       the operating system.

       Linux: /etc/MailScanner/MailScanner.conf

       FreeBSD: /usr/local/etc/MailScanner/MailScanner.conf

       Other: /opt/MailScanner/etc/MailScanner.conf

       The main process then spawns n number of child processes. n is  config‐
       ured in [configfile] with the option "Max Children". Each process waits
       for messages to appear in the "Incoming	Queue  Dir",  processes	 these
       messages	 and  then puts them in the "Outgoing Queue Dir". You may need
       to adjust the configuration of your MTA (or the startup of your MTA) to
       make it work with MailScanner.

       -v     Prints   version	 information  for  Mailscanner	and  all  used
	      perl-modules.

MTA SETUP
       It is important that your MTA only queues incoming mail	and  does  not
       deliver it automatically. You need two mail queues (incoming and outgo‐
       ing). Moreover you should setup two instances of	 your  MTA.  One  that
       accepts	incoming  mail	and  puts it to an incoming queue and one that
       sends out mail that resides in the outgoing queue.

       A common setup for Sendmail could look like this:

       1. Verify that you already have one queue (e.g. in /var/spool/mqueue).

       2. Create a second queue (e.g. /var/spool/mqueue.in) and apply the same
       owner/group/mode.

       3. Change your sendmail startup from

	   sendmail -bd -q15m (or similar)

	  to

	   sendmail   -bd   -OPrivacyOptions=noetrn   -ODeliveryMode=queueonly
       -OQueueDirectory=/var/spool/mqueue.in
	   sendmail -q15m

       A similar setup for Exim could look like this:

       1. Create two queues (e.g. /var/spool/exim.in and  /var/spool/exim.out)
       with  appropriate  owner/group/mode  (e.g.  owner=mailnull, group=mail,
       mode=750).

       2. Create two  exim  configurations  (e.g.  /usr/local/etc/exim/config‐
       ure.in, /usr/local/etc/exim/configure.out).

       3. Make sure that the incoming exim configuration only queues mails and
       never delivers mail itself. This can be achieved by using the Exim con‐
       fig option "queue_only = true" and/or a special router definition (Exim
       4 syntax):

	   defer_router:
	   driver = manualroute
	   self = defer
	   transport = remote_smtp
	   route_list = *  127.0.0.1  byname
	   verify = false

       4. Start two exim instances:

	   exim -C /usr/local/etc/exim/configure.in
	   exim -C /usr/local/etc/exim/configure.out

SEE ALSO
       MailScanner.conf(5)

Julian Field			    4.49.7			MailScanner(8)

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