Hi,

I have read in the Management Announcements, that Resellers can create blacklist, but how?

Use blacklist controls in your CP to add/delete/edit a domain. For this, go to Settings->Blacklists->Domains in Blacklist, enter either the full domain name or a domain name with a wildcard (e.g. * .smth. com) into the text box, and click on the corresponding button.