Maltigo question

[vlape at me.com (Vincent Lape)]

All,

I have an interesting situation i wanted to attempt to use Maltigo to resolve. I recently fond there are a couple 
domains are pointing their MX records to my mail server. I am sure this is by accident. What i would like to try to do 
is search for any dns entry that is pointing to my IP from any hostname. Not sure of this is possible, or even if this 
is the correct way to go about it. 

Anyone have any other suggestions or input?

Vinny