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Getting Started Guide Installation for SMTP Servers  83
6 Installation for SMTP Servers
6.1 Introduction
Installing GFI MailEssentials with other SMTP servers enables you to
scan all inbound emails received from „outside' (i.e. the internet) for
spam before reaching your SMTP Server. Outbound emails relayed to
GFI MailEssentials are also processed (e.g. adding of disclaimers and
auto-whitelisting) before these are sent via internet.
To install GFI MailEssentials with other SMTP servers, the server
where GFI MailEssentials is installed must be configured as an email
gateway server (also known as "Smart host" or "Mail relay" server) for
all your email. All inbound and outbound email must pass through this
server for scanning before being relayed to the mail server for
distribution.
6.2 System requirements
6.2.1 Software
Supported operating systems
 Microsoft Windows Server 2008 (x86 or x64)
 Microsoft Windows Server 2003 Standard/Enterprise (x86 or x64)
Mail Servers
 Any SMTP compliant email server
Other components
 Microsoft .NET Framework 2.0
 Microsoft Data Access Components (MDAC) 2.8 - included by
default on Windows Server 2003 or later. This can be downloaded
from:
http://www.microsoft.com/Downloads/details.aspx?familyid=6C050
FE3-C795-4B7D-B037-185D0506396C&displaylang=en
 Internet Information Services (IIS) (x32 or x64) - SMTP service
and WWW service.
 Microsoft XML core services: For UK/US English OS this is
installed automatically by GFI MailEssentials. For other languages,
this can be downloaded from:
http://www.microsoft.com/downloads/details.aspx?FamilyId=3144
B72B-B4F2-46DA-B4B6-C5D7485F2B42&displaylang=en
 Microsoft Message Queuing Services.