A domain or domain name is what comes between the @ in your email address and the .com, .org, .net, etc. (For example, yourname@domain.com.) Domains help your customers find and remember where your business is located on the internet. A subdomain is a portion of your domain—sales.domain.com or marketing.domain.com—that can be used to help increase deliverability of your email marketing.

Building an Opt-In List, Building Relationships
If you aim for success, you must do everything within your means to achieve that. You just donít go on sitting there in your house complaining about not getting as much profit as you expect.