A Relay Server configuration file is used to define both a Relay Server farm and the back-end server farms connecting to the Relay Server farm. The Relay Server configuration file is divided into sections:

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

Each section starts with a section tag. A section tag is formed by enclosing a keyword that identifies the section name in square brackets. For example, [relay_server] denotes the start of the Relay Server section.

The section tag is followed by several 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. For example, property name = value. All section and property names are case insensitive. Comments are marked with pound sign (#) character at the beginning of a line.

The configuration file should contain only 7-bit ASCII characters. The sections can be specified in any order.