If you wish to send email messages through an email address with your domain name, you have to make sure that the company will give you usage of their SMTP server. The aforementioned is the software enabling e-mail messages to be dispatched. SMTP is an acronym for Simple Mail Transfer Protocol and it deals with all outgoing email messages from programs, webmail and contact forms. Every time 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 name are taken care of and as soon as it obtains this information, it creates a connection to the remote POP/IMAP server to find out if the recipient mail box exists. If it does, the SMTP server sends the e-mail body while the receiving server sends it to the mail box where the recipient can open it up and read it. With no SMTP server on your server, you will not be capable to send emails at all.