Setup php mail Ubuntu digital ocean

GistFile Digital Ocean

//login to your droplet.

//1. output the hostname
hostname

//2. modify the hosts
nano /etc/host

//3. the first line in this file, should use the hostname on the end. For example: "Harman"
127.0.0.1 localhost localhost.domainname Lee

//4. install mail
sudo apt-get install sendmail

//5. configure the mail, answer yes to everything:
sudo sendmailconfig

//6. Restart apache2 / nginx
sudo service apache2 restart