setting up email
this is a real newb question but not sure where to turn. i recently purchased a developer vps from mediatemple. i have ubuntu 13* apache2 mysql and php installed and working fine with virtual domains.
however i want the site to be able to send out emails for registration and such, do i need an email server?
if so can you recommend one, and maybe a link or note as to point me in the right direction to set it up?