If you want to send email messages using an email address with your very own domain, you have to make sure that the provider will provide you with access to their SMTP server. The aforementioned is the software that enables email messages to be sent out. SMTP is an abbreviation for Simple Mail Transfer Protocol and it deals with all outgoing emails from apps, webmail and contact forms. When a message is sent, the SMTP server confirms with all of the DNS servers worldwide where the emails for the receiving domain are handled and once it obtains this information, it will connect to the remote POP/IMAP server to check if the recipient mail box is available. If it does, the SMTP server sends the message body while 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 e-mails at all.