>Does anyone know of a way to detect an MX record on a DNS server.
>I've written an application that needs to validate email addresses.
>
>I've already got the structure sorted via regular expressions. I can also check that the domain exists using pingx (check out pingx on fox.wikis.com)
>
>Know all I need is to verify that the domain has a mail server. (a bit like nslookup)
>
>Any ideas?

I am not sure how to do this. However, I know that VFUG.org uses this method, and Tom O'Hare has not had to time to work out a small kink. His method does not work with Bellsouth.Net.

Just something to look for,
Tracy