To forward email from one account to another using Postfix, you can use the following steps:
/etc/postfix directory called forward that contains a list of email addresses to forward. Each line of the file should contain an email address, followed by a colon (:) and the email address to which you want to forward the email. For example:user1@example.com: user2@example.com user3@example.com: user4@example.com
This will forward all email sent to user1@example.com to user2@example.com, and all email sent to user3@example.com to user4@example.com.
/etc/postfix directory called forward.db by running the following command:postmap /etc/postfix/forward
This will create the forward.db file, which is used by Postfix to look up the email addresses to which email should be forwarded.
/etc/postfix/main.cf file and add the following lines to the end of the file:virtual_alias_maps = hash:/etc/postfix/forward virtual_alias_domains =
This will tell Postfix to use the forward file as a virtual alias map and to consider all domains as virtual alias domains.
service postfix reload
This will reload the Postfix server and apply the changes you made to the configuration.
From now on, all email sent to the email addresses listed in the forward file will be forwarded to the email addresses specified in the file.
For more information about how to configure email forwarding in Postfix, you can consult the Postfix documentation or use the man postfix command to see the manual page.