How to install EmailRelay on Kali Linux

EmailRelay is an SMTP proxy and relay that helps to bridge communication between the client and the server. It is open-source software with a lightweight footprint and can be used to forward incoming email messages to other email servers. In this tutorial, we will show you how to install EmailRelay on Kali Linux Latest.

Prerequisites

Before installing EmailRelay, you need to ensure that you have the following:

  • Kali Linux Latest installed on your computer.
  • A text editor such as Vim or Nano.
  • A terminal to run commands.

Step 1: Install EmailRelay

Run the following command in your terminal to install EmailRelay:

sudo apt-get install emailrelay

Step 2: Configure EmailRelay

After successful installation, it is time to configure EmailRelay. Open the configuration file in your chosen text editor.

sudo vim /etc/emailrelay.conf

Next, enter the following settings to configure EmailRelay:

# Configuration for email relay
# Server settings
smtp-relay-host=YOUR-EMAIL-SERVER-IP-ADDRESS
smtp-relay-auth=
smtp-relay-port=25

# Client settings
smtp-auth=user:password
local-address=127.0.0.1
local-port=10025
remote-address=127.0.0.1
remote-port=25
  • Replace YOUR-EMAIL-SERVER-IP-ADDRESS with your email server IP address.
  • If your email server requires authentication, add your login credentials after smtp-auth= in user:password format.

Save and exit the file.

Step 3: Start the EmailRelay Service

Run the following command to start the EmailRelay service:

sudo systemctl start emailrelay

To verify that EmailRelay is running, run the following command:

sudo systemctl status emailrelay

If the service is active, then you should see a message indicating that the service is running.

Conclusion

Congratulations! You have successfully installed and configured EmailRelay on Kali Linux Latest. You can now use EmailRelay to proxy and relay incoming email messages to other email servers.