1. Edit Postfix Virtual Configuration:

Open and edit the Postfix virtual configuration file.

Add the following line, replacing email_address with the address you want to configure for autoresponding, and email_address@autoreply.nic.net.sa with the destination address for autoresponses:

For example:

2. Edit the Transport Configuration:

Open the transport configuration file and add the following line:

For example:

3. Create a Pipe for the Autoresponder in master.cf:

To execute the autoresponder script, create a pipe in the master.cf configuration. Open the master.cf file and add the following lines:

4. Create the Autoresponder Script:

Create the autoresponder script at the specified location, in this case, /usr/local/bin/autoreply.

Here’s an example of what the script could look like:

Customize the script with the appropriate sender address, subject, and content for your auto responses.

There are alternative methods for setting up autoresponders, such as using tools like Procmail, depending on your mail server setup. Postfix provides flexibility, and you can choose the method that best suits your needs.