If you'd like to send email messages using an e-mail address with your very own domain, make sure that the company will provide you with usage of their SMTP server. The aforementioned is the software system which allows e-mails to be dispatched. SMTP is an abbreviation for Simple Mail Transfer Protocol and it addresses all outgoing e-mails from programs, webmail and contact forms. When a message is sent, the SMTP server checks with all the DNS servers globally where the emails for the receiving domain are taken care of and once it acquires this information, it creates a connection to the remote POP/IMAP server to check if the recipient mail box exists. When it does, the SMTP server directs the e-mail 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 server, you will not be allowed to send out messages at all.