https://prod.jnet.julianscorner.com/ 2026-04-17T13:32:32+00:00 https://prod.jnet.julianscorner.com/ https://prod.jnet.julianscorner.com/_media/wiki/dokuwiki-128.png text/html 2023-09-18T20:00:11+00:00 Anonymous (anonymous@undisclosed.example.com) https://prod.jnet.julianscorner.com/linux/postfix/greylist Using Greylisting in Postfix Greylisting can be a pretty effective method for reducing the amount of spam you receive. It works by temporarily rejecting emails. Valid email servers will then retry delivery, and be allowed through while spammers will (hopefully) give up. text/html 2023-09-18T20:00:11+00:00 Anonymous (anonymous@undisclosed.example.com) https://prod.jnet.julianscorner.com/linux/postfix/localmail Install and Configure Postfix as a Send-Only SMTP Server * Start with a fully updated and configured Ubuntu server. * Install Postfix sudo debconf-set-selections <<< "postfix postfix/mailname string `hostname -f`" sudo debconf-set-selections <<< "postfix postfix/main_mailer_type string 'Internet Site'" sudo apt-get install -y mailutils text/html 2023-09-18T20:00:11+00:00 Anonymous (anonymous@undisclosed.example.com) https://prod.jnet.julianscorner.com/linux/postfix/mailboxcomplete Install and Configure Postfix as a Complete Mailbox Server * Start with a a simple mailbox server text/html 2023-09-18T20:00:11+00:00 Anonymous (anonymous@undisclosed.example.com) https://prod.jnet.julianscorner.com/linux/postfix/mailboxsimple Install and Configure Postfix as a Simple Mailbox Server * Make Sure All of the Latest Patches Are Installed: sudo apt-get update sudo apt-get dist-upgrade sudo reboot * Set Firewall up: sudo ufw allow smtp sudo ufw allow submission sudo ufw allow imaps text/html 2023-09-18T20:00:11+00:00 Anonymous (anonymous@undisclosed.example.com) https://prod.jnet.julianscorner.com/linux/postfix/smarthost Install and Configure Postfix To Be A Smart Host * Start with a fully updated and configured Ubuntu server. * Install Postfix sudo debconf-set-selections <<< "postfix postfix/mailname string `hostname -f`" sudo debconf-set-selections <<< "postfix postfix/main_mailer_type string 'Internet Site'" sudo apt-get -y install postfix text/html 2023-09-18T20:00:11+00:00 Anonymous (anonymous@undisclosed.example.com) https://prod.jnet.julianscorner.com/linux/postfix/start PostFix Articles * Install and Configure Postfix as a Simple Mailbox Server * Install and Configure Postfix as a Complete Mailbox Server * Install and Configure Postfix as a Send-Only SMTP Server * Install and Configure Postfix To Be A Smart Host * Using Greylisting in Postfix