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DNS_MX_DATAW structure (windns.h)

  • Article

The DNS_MX_DATA structure represents a DNS mail exchanger (MX) record as specified in section 3.3.9 of RFC 1035.

Syntax

typedef struct {
  PWSTR pNameExchange;
  WORD  wPreference;
  WORD  Pad;
} DNS_MX_DATAW, *PDNS_MX_DATAW;

Members

pNameExchange

A pointer to a string that represents the fully qualified domain name (FQDN) of the host willing to act as a mail exchange.

wPreference

A preference given to this resource record among others of the same owner. Lower values are preferred.

Pad

Reserved for padding. Do not use.

Remarks

The DNS_MX_DATA structure is used in conjunction with the DNS_RECORD structure to programmatically manage DNS entries.

Note

The windns.h header defines DNS_MX_DATA as an alias that automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that is not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes.

Requirements

Requirement Value
Minimum supported client Windows 2000 Professional [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Header windns.h

See also

DNS_RECORD