If you need to send e-mails using an e-mail 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 emails to be sent. SMTP is an acronym for Simple Mail Transfer Protocol and it deals with all outbound email messages from applications, webmail and contact web forms. Whenever a message is sent out, the SMTP server checks with all the DNS servers around the world where the e-mails for the receiving domain are managed and once it acquires this information, it connects to the remote POP/IMAP server to find out if the recipient mailbox exists. If it does, the SMTP server transmits the e-mail body and the receiving server sends it to the mailbox where the recipient can open it up and see it. With no SMTP server on your server, you won't be allowed to mail out e-mails at all.