you have a small number of users, you can just install the VS API
If you want to block entire mails, rather then message parts, you
need to use the SMTP gateway version.
SMTP gateway mode is the correct mode if you run Exchange
5.5, Lotus Notes or another SMTP/POP3 server!
Can I use both operating modes?
It is possible to deploy both versions at the same time (as long as they
are installed on separate machines). The main advantage of this is
that you can have stricter rules on inbound and outbound mail, and
less strict rules on internal mail. Also, you can avoid mail reaching
your Exchange server in the first place, and use the Exchange VS API
version to control virus outbreaks through internal mail.
GFI MailSecurity components
GFI MailSecurity consists of the following parts:
GFI MailSecurity scan engine
The GFI MailSecurity scan engine analyses the content of all in and
outbound mail and internal mail (if using in Exchange 2000/2003 VS
If a mail is quarantined, the scan engine will notify the appropriate
supervisor/administrator and ask for approval of the message.
GFI MailSecurity configuration
The GFI MailSecurity configuration
The configuration program allows you to set up and configure GFI
MailSecurity. All configuration can be done from the MMC console.
Explaining GFI MailSecurity