This will send an email with the content loaded from /home/jmutai/file. You can also load existing data to mail mail -s 'Mail Subject' < /home/jmutai/file.txt To test email delivery, use the mail command like below echo 'Postfix Send-Only Server' | mail -s 'Postfix Testing' You have successfully installed and configured Postfix as a Send only MTA server. Restart Postfix service for it to pick the new changes: sudo systemctl restart postfix inet_interfaces = loopback-onlyĪlso, set myhostname to your Server FQDN myhostname= The default setting is to listen on all interfaces. Set Postfix to listen on the 127.0.0.1loopback interface. Configure Postfix MTA ServerĮdit Postfix configuration file /etc/postfix/main.cf to ensure it is configured as send only ( Only relaying emails from the local server). Txhawm rau teeb tsa txoj cai tso cai hauv UFW tuaj yeem ua tau ntau txoj hauv kev. By default, Telnet runs on chaw nres nkoj 23. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators. Firstly, to connect to your remote system running Telnet, you will need to set up an allow rule.

Select OK to save the settings and finish the installation. Connect to your Telnet server on Ubuntu 20.04 Set UFW Rule.

The next page will ask you to set your Mail server name, this can be domain or server hostname with an A record. For ” General type of email configuration” window, select Internet site and click OK button sudo hostnamectl set-hostname ĭownload mailutils which install postfix and other mail utils for you: sudo apt install mailutilsĪs the package installs, you’ll be asked to select an option on screen for your mail server. Also set a hostname for the server so that emails will show a from address with valid domain section.

Setup telnet server ubuntu