If you'd like to send email messages through an email address with your very own domain, you have to make sure that the provider will give you access to their SMTP server. The aforementioned is the software which permits e-mails to be sent out. SMTP is an acronym for Simple Mail Transfer Protocol and it addresses all outbound emails from applications, webmail and contact web forms. Whenever a message is sent out, the SMTP server checks with all the DNS servers throughout the world where the e-mails for the receiving domain are handled and when it obtains this info, it will connect to the remote POP/IMAP server to see if the recipient mail box is available. If it does, the SMTP server sends the e-mail body and then the receiving server sends it to the mail box where the recipient can open it up and see it. With no SMTP server on your server, you will not be capable to send out emails in any way.