A relay server configuration file is used to define both a relay server farm and the backend server farms connecting to the relay server farm. The relay server configuration file is divided into sections. Each section starts with a section tag. A section tag is formed by enclosing a section name in square brackets. The section tag is followed by a number of lines defining various properties related to the section being defined. A property is defined by specifying the property name on the left-hand side of an equal sign and its value on the right-hand side of the equal sign. All section and property names are case insensitive. Comments are marked with pound sign (#) character at the beginning of a line.

There are four kinds of sections in the relay server configuration file:

• Relay server section
• Backend farm section
• Backend server section
• Options section

The sections in the configuration file can be specified in any order.