I would like certain system accounts (root and www-data) to have the header From: Example Company <[email protected]> when e-mail is sent using either the mail or sendmail commands, or from programming languages like PHP (which just uses a sendmail wrapper).
I would prefer not to have to add the -f and -F options every time I invoke one of these commands. Is there any way to configure this specifically for these accounts?
Operating system is Debian 7.2.
I ran into this recently.
You can change the address with the generic maps as davidgo mentioned.
In /etc/postfix/main.cf
Add this line
smtp_generic_maps = hash:/etc/postfix/generic
And then in /etc/postfix/generic
Add the line for the originating email address, and the email address you want it to appear to be from
[email protected] [email protected]
[email protected] [email protected]
and then run the following postmap command to re-generate the map:
postmap /etc/postfix/generic
To make the user appear to be Example Company you need to set the GECOS field in /etc/passwd for root and www-data to be Example Company
As you are actually using Postfix (The sendmail binary is actually Postfix), You can probably change the from adress this by adding a "smtp_generic_maps" file and mapping for the relevant addresses or using canonical_maps to do something similar. I don't think you will be able to change the associated account name (ie the part in the square brackets) without massive hoops but I could be wrong.
I write here what I made some times to find with Exim4
It's apparently simple :
For the email rewrite:
$ vim /etc/email-addresses
root: [email protected]
www-data: [email protected]
For the fullname rewrite
$ vim /etc/passwd
root:x:0:0:Example Company:/root:/bin/bash
www-data:x:33:33:Example Company:/var/www:/usr/bin/nologin
sendmailexecutable is not symlinked to anything.