Product manual

GFI MailEssentials 3 Installation | 28
Port Description
389/636 -
LDAP/LDAPS
This port is used in these scenarios:
Microsoft
®
Exchange environment - Required if the server running GFI MailEssentials does not
have access/cannot get list of users from Active Directory, for example, in a DMZ environment or
other environments which do not use Active Directory.
Lotus Domino mail server environment - Required to get email addresses from Lotus Domino
server.
Other SMTPmail server environments - Required to get email addresses from SMTP server.
3.2 Pre-installation actions
Before installing GFI MailEssentials, prepare your environment for deployment.
3.2.1 Installing on the Microsoft® Exchange server 28
3.2.2 Installing on an email gateway or relay/perimeter server 28
3.2.1 Installing on the Microsoft
®
Exchange server
When installing GFI MailEssentials on the same server as Microsoft
®
Exchange 2003 or later, no pre-
install actions or configurations are required.
NOTE
In Microsoft
®
Exchange 2007/2010 environments, GFI MailEssentials can only be
installed on the servers with the following roles:
Edge Server Role, or
Hub Transport Role, or
Hub Transport and Mailbox Roles - with this configuration GFI MailEssentials can
also scan internal emails for viruses.
3.2.2 Installing on an email gateway or relay/perimeter server
GFI MailEssentials can be installed:
On a perimeter server (for example, in a DMZ)
As a mail relay server between the perimeter (gateway) SMTP server and mail server.
This setup is commonly used to filter spam on a separate machine, commonly installed in the DMZ. In
this environment a server (also known as a gateway/perimeter server) is set to relay emails to the
mail server. GFI MailEssentials is installed on the gateway/perimeter server so that spam and email
malware is filtered before reaching the mail server.
GFI MailEssentials uses the IIS SMTP service as its SMTP Server and therefore the IIS SMTP service must
be configured to act as a mail relay server. To do this:
Step 1:Enable IIS SMTP Service
Step 2: Create SMTP domains for email relaying
Step 3:Enable email relaying to your Microsoft
®
Exchange server
Step 4:Secure your SMTP email-relay server