If you want to send out email messages through an email address with your personal domain name, make sure that the company will provide you with access to their SMTP server. The aforementioned is the software system enabling emails to be transmitted. SMTP is an acronym for Simple Mail Transfer Protocol and it deals with all outgoing e-mails from apps, webmail and contact forms. When a message is sent, the SMTP server confirms with all of the DNS servers around the world where the e-mails for the receiving domain are taken care of and as soon as it gets this info, it will connect into the remote POP/IMAP server to check if the recipient mail box is out there. When it does, the SMTP server transmits the email body while the receiving server sends it to the mailbox where the recipient can open it up and read it. With no SMTP server on your end, you won't be able to send emails in any way.