How to change FROM name with mailutils?

DenisZ

12/27/23, 4:29 PM

I have a script that sends email with some server info regularly. I use following command within a script

cat $msg |mail -r script1@my.domain.com -s "server event" myemail@adress.com

The problem with Ubuntu machines is they always put "root <script1@my.domain.com>" in FROM header, so when I receive email it just says from root.
Since I have many different machines I would like to see email address. Within Fedora works normally with same command, and email has only email address as From header.
I've tried to use -r Script1 <script@my.domain.com> (gives an error) or -u Script1 -r script@my.domain.com but result is the same. mail appends name "root" to From header so I only see as email from root.

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20.04

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Ubuntu

DenisZ

12/27/23, 6:36 PM

I found a solution when putting all in one line:

cat $msg |mail -a "From: Script1 <script1@my.domain.com>" -s "server event" myemail@adress.com

but if I use variable for From: field, it keeps giving me an error.

msg="Message to send"
EMTO="myemail@address.com"
EMFR='-a "From: Script1 <script1@my.domain.com>"'
cat $msg |mail $EMFR -s "server event" $EMTO

mail: Cannot parse address `<Script1@my.domain.com>"' (while expanding `<script1@my.domain.com>"'): Malformed email address

Closest I can get to working option is defining just email like following:

msg="Message to send"
EMTO="myemail@address.com"
EMFR="Script1 <script1@my.domain.com>"
cat $msg |mail -a "From: $EMFR" -s "server event" $EMTO

I would like to avoid modifying mail command, as I have a lot o them through out each script, whereas email addresses are defined only on top. Any clues?

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