What does mail server in cluster stand for?
(back to top) A mail server in a cluster means that you can have only one mail server, which your clients will use for the settings of their mail boxes, regardless of the server the domains that they use to create the e-mail boxes are hosted on. You should create brand awareness and the domain that you use for selling hosting services should be the same as the one set as a private DNS, utilized also as a mail server. For example: mail.your-private-brand.