Internet Direct (Indy) Version 9.0.2 Beta
TMXRecord.ExchangeServer
Indicates the host that can act as a mail exchange for a domain.

property ExchangeServer: string;
Description
ExchangeServer is a read-only String property that indicates the host name for a server that can act as a mail exchange for the owner of the resource record.

Use Preference to determine the priority given to a particular ExchangeServer.