Inside Macintosh: Open Transport /

Chapter 8 - TCP/IP Services / TCP/IP Services Reference

Constants and Data Types

Internet Mail Exchange Structure

The OTInetMailExchange function (page 8-45) returns host names and mail preference values in an array of internet mail exchange structures. The internet mail exchange structure is defined by the InetMailExchange data type.

struct InetMailExchange {
   UInt16         preference;
   InetDomainName exchange;
};

Field Description

preference

The mail exchange preference value. The mail exchanger with the lowest preference number is the first one to which mail should be sent.

exchange

The fully qualified domain name of a host that can accept mail for your target host.