On Thu, Sep 08, 2005 at 12:16:36PM -0600,
 Cristian Prieto <[EMAIL PROTECTED]> wrote 
 a message of 66 lines which said:

> res = res_query(name, C_IN, T_MX, answer, sizeof(answer));

Besides Randal Schwartz' excellent remark (do not forget the AAAA
records, too), remember that the Internet is not reliable. What do you
do when there is a temporary failure? (The email system works fine
when faced with such failures.)

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