Retrieving the mail server host name from the DNS !

Posted on 2002-04-27
Last Modified: 2010-04-02
SDK : C++ Builder 5


I want to retrieve the ip address of a mail server from the DNS.

For example
When you have such address :
I want to know the ip address of the mail server
and not the ip address of their Web site.

When i use the GetHostByName(), this function only returns me the ip address of the Web server.

Could you give a piece of code ...

Thank you
Question by:mars
LVL 32

Accepted Solution

jhance earned 150 total points
ID: 6973658
The socket function gethostbyname() only queries for "A" records.  To get a mail server you need to query for "MX" records.  There is no high-level socket function to do that.  You must do it yourself.

Here is an example of this:

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