If you wish to send e-mail messages through an email address with your domain, make sure that the provider will provide you with usage of their SMTP server. The aforementioned is the software system which permits email messages to be transmitted. SMTP is an acronym for Simple Mail Transfer Protocol and it manages all outbound emails from programs, webmail and contact web forms. When a message is sent out, the SMTP server confirms with all of the DNS servers around the world where the emails for the receiving domain are taken care of and as soon as it acquires this info, it creates a connection into the remote POP/IMAP server to find out if the recipient mailbox exists. If it does, the SMTP server directs the email body and so the receiving server sends it to the mailbox where the recipient can open it up and see it. Without having a SMTP server on your end, you won't be allowed to send out emails in any way.