If you'd like to send e-mails using an email address with your domain name, make sure that the company will give you usage of their SMTP server. The aforementioned is the software allowing email messages to be sent out. SMTP is an abbreviation for Simple Mail Transfer Protocol and it manages all outgoing e-mails from programs, webmail and contact forms. When a message is sent out, the SMTP server checks with the DNS servers worldwide where the emails for the receiving domain name are managed and when it gets this information, it connects into the remote POP/IMAP server to check if the recipient mail box is available. When it does, the SMTP server transmits the message 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 server, you will not be capable to send out messages in any way.