changing cron's From: address in emails

[krad]

2009/10/25 Daniel C. Dowse <dcdowse at gmx.net>

> On Sat, 24 Oct 2009 01:08:21 -0600
> Kelly Martin <kellymartin at gmail.com> wrote:
>
> > Greetings, here's a simple question for the FreeBSD gurus out there. I
> > have several servers running cron scripts daily for me, and they all
> > send me e-mail with their output. Regardless of which server it is,
> > each of these e-mails have the From: address looking exactly the same.
> > They all say they are from the "Cron Daemon". Fine, but I'd like to
> > know more clearly which server the cron output is from.
> >
> > How can I change the From: address of these emails to "Myserver Cron
> > Daemon" instead? I know cron runs as the user, so it's not immediately
> > obvious to me how to change the From: field. Already the subject line
> > says something like "Cron <root at Myserver> ..." but this doesn't stand
> > out enough for my tired eyes.
>
> Why don`t  you just create some filter rules in your mua ?
> It may makes it clear for you if you create a folder for each host
> and filter your msg on receiving ?
>
> e.g.
>
> Inbox
> ...
> CronDir
>        - Host 1
>        - Host 2
>        ....
>
>
> Cheers
>
> Daniel
>
> --
> Just because I don`t care - Doesn`t mean I don`t understand !
> -- Homer J. Simpson
>
>
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The simplist way to do it is get you scripts to print out a to, from and
subject line at the top of their output containing the information you want.
eg

To: your at mailbox.com
From: scriptname at hostname.com
Subject: scriptname, hostname

other script output


Then in the cron pipe the output into sendmail with the t flag

eg

1 1 * * * somescript 2>&1 | /usr/sbin/sendmail -t

you will then get the loverly named emails