If you want to send emails using an e-mail address with your personal domain name, make sure that the provider will provide you with usage of their SMTP server. The aforementioned is the software system which allows e-mail messages to be dispatched. SMTP is an acronym for Simple Mail Transfer Protocol and it deals with all outbound emails from apps, webmail and contact forms. Every time a message is sent out, the SMTP server checks with all of the DNS servers globally where the e-mails for the receiving domain are managed and as soon as it acquires this info, it will connect to the remote POP/IMAP server to check if the recipient mailbox is available. When it does, the SMTP server directs the email body and then the receiving server delivers it to the mail box where the recipient can open it up and read it. Without an SMTP server on your server, you will not be capable to mail out e-mails at all.