If you need to send out emails through an e-mail address with your very own domain, you have to make sure that the company will provide you with usage of their SMTP server. The aforementioned is the software system that enables e-mails to be dispatched. SMTP is an acronym for Simple Mail Transfer Protocol and it addresses all outgoing email messages from applications, webmail and contact forms. Whenever a message is sent out, the SMTP server confirms with all the DNS servers around the world where the emails for the receiving domain name are handled and as soon as it obtains this data, it will connect into the remote POP/IMAP server to check if the recipient mail box is available. In case it does, the SMTP server transmits the e-mail body and then the receiving server delivers it to the mail box where the recipient can open it and see it. With no SMTP server on your server, you will not be capable to send messages at all.