MX Record Resolver Component (ActiveX) for Windows

The description of MX Record Resolver Component (ActiveX) - Play With New Friends

This is the only offered solution which can provide this functionallity, this component extract all MX records of certain doman. MX record is the address of email server. Without this component, you have to get the records manually using nslookup utility, or using some free web service like zonedit, put you cannot integrate it with your code.