If you want to send e-mails through an email address with your very own domain name, you have to make sure that the provider will provide you with access to their SMTP server. The aforementioned is the software system which permits e-mails to be dispatched. SMTP is an acronym for Simple Mail Transfer Protocol and it addresses all outgoing emails from programs, webmail and contact forms. When a message is sent, the SMTP server checks with all the DNS servers worldwide where the emails for the receiving domain name are handled and when it obtains this data, it will connect into the remote POP/IMAP server to check if the recipient mailbox exists. When it does, the SMTP server transmits the e-mail body and then the receiving server sends it to the mailbox where the recipient can open it and see it. With no SMTP server on your end, you won't be capable to send out messages in any way.