Description: dToolz is an advanced Windows software program that includes a Domain MX verifier, a RDNS checker and a Catch-all verifier. The Domain MX verifier will perform MX lookups on the domains in a list to determine which domains that can accept emails. The RDNS tool will perform IP to Host resolving. And the Catch-all verifier will find out which domains that accepts emails to any random username on that very domain.