If you would like to send emails using an email address with your own domain name, you have to make sure that the provider will provide you with usage of their SMTP server. The aforementioned is the software system that allows e-mails to be sent. SMTP is an abbreviation for Simple Mail Transfer Protocol and it handles all outgoing email messages from programs, webmail and contact forms. Every time a message is sent out, the SMTP server checks with all of the DNS servers around the world where the e-mails for the receiving domain are managed and as soon as it obtains this information, it will connect to the remote POP/IMAP server to see if the recipient mailbox is available. If it does, the SMTP server directs the e-mail body while the receiving server sends it to the mail box in which the recipient can open it up and see it. Without an SMTP server on your end, you won't be capable to mail out emails at all.