Domain name is the address through which people or organization known in the internet. Domain names should be a good one in order to get the desired result for your web site. A wrong domain name means you are ending up with lower turn out to your business. DMARC policy In today's world, there are lot of fraud activities happening over the internet and you can see from your email inbox or spam box a number of such emails. Those mails are circulated by some companies intentionally for their advertisement or hackers using other's domains to do their illegal activities even without the information of the owner of the web site or domain. If you come across any kind of such activities you can easily find out who is the owner of that web site from where you received the mail. Most of the web sites will be have at the bottom of the page where copy right related details mentioned. Other way to find them legally is to write to the Webmaster. Also, there are many other ways to find it out through internet such as Google search for 'magic domain search' and you will get the required information such as the owner of the domain name within a pretty good time. Also, another there is another search option called Whois.net web site and enter the domain address only without mentioning.com or.org and from this site search you can even get the original name of the domain owner under 'Registrant Name'. However, the registration companies keeping the records of all the domain owners who have registrations done through them and the best way to find it to approach them, if you know the domain name. But, it may not be that easy to find it out from the registrar companies because the spammers may use them for their activities. Another search option is looking for 'Search Through Deleted Domains' and through this search you can find out whether a particular domain name is available or not. There are companies registering multiple domain names such as "http://www.example.com" and "http://www.example.org".