If you'd like to send e-mails using an e-mail address with your personal domain name, make sure that the company will provide you with access to their SMTP server. The latter is the software that enables e-mails to be transmitted. SMTP is an acronym for Simple Mail Transfer Protocol and it handles all outgoing e-mails from programs, webmail and contact web forms. When a message is sent out, the SMTP server checks with the DNS servers around the world where the emails for the receiving domain name are taken care of and when it obtains this information, it connects to the remote POP/IMAP server to check if the recipient mail box exists. If it does, the SMTP server directs the message body while the receiving server delivers it to the mail box in which the recipient can open it up and read it. Without an SMTP server on your end, you won't be capable to mail out messages in any way.