If you would like to send emails through an email address with your very own domain name, you have to make sure that the provider will provide you with access to their SMTP server. The latter is the software system that enables e-mails to be sent. SMTP is an abbreviation for Simple Mail Transfer Protocol and it manages all outgoing email messages from programs, webmail and contact web forms. Every time a message is sent out, the SMTP server confirms with all the DNS servers worldwide where the e-mails for the receiving domain name are managed and as soon as it obtains this data, it connects into the remote POP/IMAP server to see if the recipient mailbox exists. When it does, the SMTP server sends the email body while the receiving server sends it to the mail box where the recipient can open it up and see it. With no SMTP server on your server, you will not be allowed to send e-mails in any way.