Dreamhost mail server from Virtual Machine

How to configure a “command line mail capability” to send emails using my Dreamhost mail server (this is part of a MySQL daily dump procedure) from a CentOS “Virtual” instalation (using Virtual Box from Oracle, former Sun)?

It sounds to me that you want to receive an email notification about your mysql database backup. I assume that you will schedule a crontab job to backup you mysql database regularly. Is contab email enough for you? If you specify “MAILTO=youremailaddress” at the top of the crontab job, you will receive an email notification when the job is finished.