Internal Configuring Postfix

All servers deliver mail through gcmmail.grandcare.com.

note: it's easiest to choose Satellite when prompted during apt install

Gather the public IP address of the server you're configuring mail on.

1. Login to gcmmail.grandcare.com
   1. Add $IPAddress/32 to the mynetworks directive found in /etc/postfix/main.cf
   2. Restart postfix
2. Login to your $server
   1. Change the relayhost directive to gcmmail.grandcare.com
   2. Restart postfix
   3. Test configuration

# requires mailutils

mailcmd=mail
echo "Hello World" | $mailcmd -s 'test' my@emailaddress.tld

note: you can just use mail instead of $mailcmd, I had to do this to get around mod_security on this webserver