If you would like to send e-mails 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 email messages to be sent out. SMTP is an acronym for Simple Mail Transfer Protocol and it manages all outbound email messages from apps, webmail and contact web forms. When a message is sent, the SMTP server confirms with all the DNS servers globally where the e-mails for the receiving domain are handled and as soon as it acquires this data, it will connect to the remote POP/IMAP server to check if the recipient mailbox is out there. In case it does, the SMTP server directs the message body and so the receiving server delivers it to the mail box in which the recipient can open it and read it. Without an SMTP server on your server, you will not be able to send out messages in any way.