I have a linode account when i click on DNS manager then edit my domain name there is a section that says Mail Server and written as mail.mydomain.com . Does that mean linode comes with a email server and i dont have to install one?
Also if i do need to install one when installing postfix it asks for a fully qualified domain name, im always unsure what to put for this one. would it be mail.mydomain.com or the default one that comes with linode which is in this format: lixxx-xx.members.linode.com or the domain i want to use like mydomain.com