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Config mail digital ocean

login to your droplet of digital ocean

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: "Lee"
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
sudo service apache2 restart

Prevent the spam folder
1. Make sure your IP address is not on a blacklist.
http://mxtoolbox.com/blacklists.aspx

2. Make sure the SPF record is set properly in a TXT record of the DNS for your domain:
“v=spf1 +a +mx +ip4:xx.xx.xx.xx ~all”

3. Make sure that the DKIM record is set properly in a TXT record of the DNS for your domain:
“v=DKIM1; k=rsa; p=some.very.long.rsa.key.goes.here\;

4. Make sure your server is not an open relay