If you need to send out emails through an e-mail address with your own domain, make sure that the provider will give you access to their SMTP server. The aforementioned is the software which allows e-mails to be transmitted. SMTP is an acronym for Simple Mail Transfer Protocol and it addresses all outgoing email messages from programs, webmail and contact forms. Whenever a message is sent out, the SMTP server checks with all of the DNS servers throughout the world where the emails for the receiving domain name are managed and once it acquires this data, it connects to the remote POP/IMAP server to find out if the recipient mailbox is out there. In case it does, the SMTP server transmits the e-mail body while the receiving server sends it to the mailbox where the recipient can open it and read it. Without an SMTP server on your end, you will not be able to send out e-mails at all.