Changing 'From:' address of periodic scripts
m.seaman at infracaninophile.co.uk
Thu Aug 28 09:37:14 UTC 2008
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Jonathan Belson wrote:
| Greg Larkin wrote:
|> Jonathan Belson wrote:
|> | Hiya
|> | I set up a remote box to e-mail 'periodic' output to me directly. It
|> | has now
|> | stopped working, and I suspect it's because the 'From:' addresses of
|> | status
|> | e-mails is of the form 'root at mybox.local' and the ISP has upped its
|> | anti-spam
|> | checks.
|> | I see /usr/sbin/periodic itself uses the 'mail' command to send the
|> | mails, but I
|> | couldn't see a command line option to specify a 'From:'. I guess
|> | uses
|> | 'sendmail' to send e-mail; is there a simple way of forcing a 'From:'
|> | address
|> | via 'sendmail' config?
|> Hi Jon,
|> Have a look at this: http://www.sendmail.org/m4/masquerading.html and
|> perhaps this, too: http://www.madboa.com/geek/sendmail-genericstable/
|> You can rewrite root at mybox.local to appear as though it's coming from a
|> real email address by using the techniques on those pages.
|> Please post back here if you run into any trouble!
| OK, thanks. After playing with MASQUERADE_AS(), MASQUERADE_DOMAIN()
| plus a few FEATURES(), I've managed to change the 'From:' address for
| e-mails sent via the command line. Unfortunately, e-mails sent via the
| cron-ed periodic scripts still don't get through, although if I run e.g.
| 'periodic daily' from the command line, the mail does reach me.
| The only difference I can think of is that cron runs the scripts as
| root. Could this cause the difference?
Yes. root is specifically exempted from all the masquerading stuff.
There's an EXPOSED_USER macro you can use in $(hostname).mc to control
Dr Matthew J Seaman MA, D.Phil. Flat 3
~ 7 Priory Courtyard
PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate
~ Kent, CT11 9PW, UK
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