If you would like to send e-mail messages through an email address with your personal domain name, make sure that the provider will give you access to their SMTP server. The aforementioned is the software system allowing e-mail messages to be dispatched. SMTP is an acronym for Simple Mail Transfer Protocol and it handles all outbound e-mails from apps, webmail and contact web forms. Whenever a message is sent out, the SMTP server confirms with all of the DNS servers throughout the world where the e-mails for the receiving domain name are managed and when it acquires this info, 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 and then the receiving server sends it to the mailbox in which the recipient can open it and read it. Without having a SMTP server on your end, you won't be allowed to mail out e-mails in any way.