QUALIFY_DOMAIN

This configuration variable defines the Internet domain to be appended to all non-qualified Internet addresses in incoming mail. This is mostly useful when dealing with Unix systems, which often do use unqualified addresses (in violation of the Internet mail standards). In a typical non-Unix-based network, this option does not need to be set.

The default value is determined from the Internet host name. For instance, if your host name is LISTSERV.XYZ.COM, the value of QUALIFY_DOMAIN will be .XYZ.COM.