Product manual

GFI MailEssentials 3 Installation | 27
32-bit installations (x86) 64-bit installations (x64)
<..\Program Files\Exchsrvr\Mailroot> - if installed on the same machine as Microsoft
®
Exchange 2003
<..\Program Files\Microsoft\Exchange Server\TransportRoles> - if installed on the same machine as Microsoft
®
Exchange
2007
<..\Program Files\Microsoft\Exchange Server\V14\TransportRoles> - if installed on the same machine as Microsoft
®
Exchange 2010
<..\Program Files\Microsoft\Exchange Server\V15\TransportRoles> - if installed on the same machine as Microsoft
®
Exchange 2013
3.1.7 Firewall port settings
Configure your firewall to allow the ports used by GFI MailEssentials.
Port Description
53 - DNS Used by the following anti-spam filters:
IP DNS Blocklist
SpamRazer
URI DNSBlocklist
20 &21 -
FTP
Used by GFI MailEssentials to connect to ftp.gfi.com and retrieve latest product version information.
80-HTTP Used by GFI MailEssentials to download product patches updates for:
SpamRazer
Anti-Phishing
Bayesian Analysis
Antivirus definition files
Trojan and executable scanner
Email Exploit engine
GFI MailEssentials downloads from the following locations:
http://update.gfi.com
http://update.gfisoftware.com
http://support.gfi.com
*.mailshell.com
*.spamrazer.gfi.com
NOTE
GFI MailEssentials can also be configured to download updates through a proxy server. For more
information, refer to Proxy settings (page 221).
8013, 8015,
8021-
Remoting
These ports are used for inter-process communication. No firewall configuration is required to allow
connections to or from the remoting ports since all the GFI MailEssentials processes run on the same
server.
NOTE
Ensure that no other applications (except GFI MailEssentials) are listening on these ports. If other
applications are using this ports, these ports can be changed. For more information, refer to
Remoting ports (page 254).