Forward System Emails - Revision history

Bigfoot65 at 03:39, 23 June 2020

2020-06-23T03:39:11Z

Bigfoot65: /* Method 1: The .forward file */

2011-03-27T16:16:16Z

Method 1: The .forward file

Bigfoot65: /* Method 2: The aliases file */

2011-03-27T16:15:40Z

Method 2: The aliases file

Rgmhtt at 16:16, 23 November 2010

2010-11-23T16:16:19Z

Rgmhtt: Instructions for forwarding emails normally sent to 'root'.

2010-11-23T14:31:23Z

Instructions for forwarding emails normally sent to 'root'.

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Linux servers generate emails on a daily (or even hourly) basis, reporting the system's health. These emails are addressed to the local 'root' account. They can be read by any number of local mail readers.

Linux provides a few mechanisms for forwarding these emails to 'root' (and for that matter to any local address). Below are the two simplest methods to set up forwarding. Note that SENDMAIL MUST be running, and port 25 must NOT be blocked. Many ISPs block sending on port 25 (to limit spamming), so you may not be able to forward to an external mail account like foo@gmail.com. Port 587 is the accepted alternative to port 25. A separate page will show how to alter sendmail to use port 587 or to operate with a 'Smart Host' to work around this roadblock.

==== Method 1: The .forward file ====
This is the easiest method for a simple forward. As root, use your favorite editor to create the file, /root/.forward with the single line:

foo@bar.com

Or for multiple copies, space separate the address:

foo@bar.com bar@foo.net

Any user can have their own .forward file.

==== Method 2: The aliases file ====

Edit the /etc/aliases file. There is an comment example at the end of the file for forwarding mail for 'root'; you can simply edit this line. You MUST be logged in as root (or use su or sudo) to edit the aliases file. Root can add a forward for any local user to the aliases file. After the changes are made to the aliases file, they are actuated with the command:

aliases

In the scheme of things, the /etc/aliases file is processed before the ~/.forward file.

@@ Line 18: / Line 18: @@
 Edit the /etc/aliases file.  There is an comment example at the end of the file for forwarding mail for 'root'; you can simply edit this line.  You MUST be logged in as root (or use su or sudo) to edit the aliases file.  Root can add a forward for any local user to the aliases file.  After the changes are made to the aliases file, they are actuated with the command:
- newaliases
+{{Code|newaliases}}
 In the scheme of things, the /etc/aliases file is processed before the ~/.forward file.

@@ Line 6: / Line 6: @@
 This is the easiest method for a simple forward.  As root, use your favorite editor to create the file, /root/.forward with the single line:
-{{Text|Text=foo@bar.com}}
+ foo@bar.com
 Or for multiple copies, space separate the address:
-{{Text|Text=foo@bar.com bar@foo.net}}
+ foo@bar.com bar@foo.net
 Any user can have their own .forward file.
@@ Line 18: / Line 18: @@
 Edit the /etc/aliases file.  There is an comment example at the end of the file for forwarding mail for 'root'; you can simply edit this line.  You MUST be logged in as root (or use su or sudo) to edit the aliases file.  Root can add a forward for any local user to the aliases file.  After the changes are made to the aliases file, they are actuated with the command:
-{{Code|newaliases}}
+ newaliases
 In the scheme of things, the /etc/aliases file is processed before the ~/.forward file.