System requirements

To install GFI MailSecurity you need:

Windows 2000 Professional/Server/Advanced Server (Service Pack 1 or higher) or Windows 2003 Server/Advanced Server or Windows XP.

NOTE: Since Windows XP has some speed limitations, installing GFI MailSecurity on a machine running Windows XP could affect its performance.

Microsoft Exchange Server 2000 (SP1), 2003, 4, 5 or 5.5, Lotus Notes 4.5 and up, or any SMTP/POP3 mail server.
When using Small Business Server, ensure you have installed Service Pack 2 for Exchange Server 2000 and Service Pack 1 for Exchange Server 2003.
Microsoft .Net framework 1.1
MSMQ - Microsoft Messaging Queuing Service.
Internet Information Services (IIS) - SMTP service and World Wide Web service.

IMPORTANT: Disable anti-virus software from scanning the GFI MailSecurity directories. Anti-virus products are known to both interfere with normal operation as well as slow down any software which requires file access. In fact, Microsoft does not recommend running file-based anti-virus software on the mail server. For more information, please refer to http://kbase.gfi.com/showarticle.asp?id=KBID001559.

IMPORTANT: GFI MailSecurity directories should never be backed up using backup software.