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68  Installation for Lotus Domino Getting Started Guide
5.2.2 Hardware
Processor
 Minimum: Intel Pentium or compatible 1 GHz 32-bit processor
 Recommended: x64 architecture-based server with Intel 64
architecture or AMD64 platform.
Memory
 Minimum: 1GB
 Recommended: 2GB RAM
Physical Storage
 Minimum: 500MB for installation, 2GB for execution.
 Recommended: 500MB for installation, 4GB for execution
5.3 Important settings
5.3.1 Antivirus and backup software
Antivirus and backup software may cause GFI MailEssentials to
malfunction. This occurs when such software denies access to certain
files required by GFI MailEssentials.
Disable third party antivirus and backup software from scanning the
following folders:
x86 installations (32-bit)
x64 installations (64-bit)
<..\Program Files\GFI\MailEssentials>
<..\Program Files
(x86)\GFI\MailEssentials>
<..\Program Files\Common Files\GFI>
<..\Program Files (x86)\Common
Files\GFI>
<..\Inetpub\mailroot> If installed on a gateway machine.
5.3.2 Firewall port settings
Configure your firewall to allow the following port connections. These
ports are used by GFI MailEssentials to connect to GFI servers:
 DNS (Port 53) - Used by anti spam filters (IP DNS Blocklist,
Sender Policy Framework, Header Checking).
 FTP (Ports 20 and 21) - Used by GFI MailEssentials to connect to
'ftp.gfisoftware.com' and retrieve latest product version
information.
 HTTP (Port 80) - Used by GFI MailEssentials to download product
patch and anti spam filter updates (i.e. SpamRazer, Anti-Phishing,
and Bayesian anti spam filters) from the following locations:
o 'http://update.gfi.com'
o 'http://update.gfisoftware.com'
o 'http://support.gfi.com