If you need to send email messages through an email address with your domain name, you have to make sure that the provider will give you access to their SMTP server. The aforementioned is the software which permits email messages to be sent. SMTP is an abbreviation for Simple Mail Transfer Protocol and it addresses all outgoing email messages from applications, webmail and contact forms. Every time a message is sent, the SMTP server checks with the DNS servers globally where the emails for the receiving domain name are taken care of and as soon as it acquires this data, it will connect into the remote POP/IMAP server to see if the recipient mailbox is out there. If it does, the SMTP server sends the e-mail body and then the receiving server sends it to the mail box where the recipient can open it and see it. Without an SMTP server on your end, you will not be allowed to send out e-mails in any way.