Forwarding Email in Exim

Problem: How to forward emails using Exim in Linux.

Solution: Use the /etc/aliases file

The exim email program can be set to forward email directed at your
user account to another user on the server, or to an off site email
account.  The forwarding is handy because the last thing we need
are lots of email accounts that we have to log into.

To edit the forwarding addresses, we’ll open the vi editor and edit the aliases file.

Log in to the server and type the following at the shell prompt (make sure you’re logged in as root):

vi /etc/aliases

Move the cursor to the position you want to edit and type the lowercase "i" to begin inserting.

Your file will have many entries that follow the format of

daemon: root
bin: root
sys: root

Add the user account name that you wish to have mail forwarded from
followed by a semicolon and the off site email address you wish to have
the emails forwarded to:

username: [email protected]