getmxrr() simulation with Net_DNS

Hi, I want to use the getmxrr() PHP function to check if a mail host exists. However i want to make sure my code runs on the windows based development servers, and then on the final Linux based production server. According to the PHP manual http://uk.php.net/getmxrr I should use the PEAR Net/DNS package for Windows compatibility. However the package has no documentation and i didn't see a method with the same name. How do I use the DNS class for my required purpose? Regards, MIke C. -- http://www.buddasworld.co.uk ---------------------------------------------- This mail sent through http://www.ukonline.net