Configure Postfix to use Gmail as a Mail Relay on Fedora
Summary: #dnf update && dnf install postfix cyrus-sasl cyrus-sasl-plain mailx #vi /etc/postfix/sasl_passwd [smtp.gmail.com]:587 username@gmail.com:password #chmod 600 /etc/postfix/sasl_passwd #vi /etc/postfix/main.cf Add or modify the following values: relayhost = [smtp.gmail.com]:587 smtp_use_tls = yes smtp_sasl_auth_enable = yes smtp_sasl_security_options = smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd smtp_tls_CAfile = /etc/ssl/certs/ca-bundle.crt #postmap /etc/postfix/sasl_passwd #systemctl restart postfix.service https://myaccount.google.com/lesssecureapps #mail -s "Subject Here" recipient@domain.com < textfile or #telnet localhost 25 mail from: rcpt to: data your_messages . quit Troubleshooting: journalctl -u postfix