* Greg Ward <gward@???> [20021008 19:02]: wrote:
> On 08 October 2002, Odhiambo G. Washington said:
> > I have a disturbing question and a sanity check for my mind will do.
> > Maybe even some flaming! for some novice-ish questions.
> >
> > Ideally, what should happen when an e-mail is sent to Mailer-Daemon?
>
> It should go to the same person/people who receive postmaster mail for
> that domain. This should be done in your alias file:
>
> postmaster: joe, bob, tim # assuming those are the local sysadmins
> root: postmaster
> mailer-daemon: postmaster
> exim: postmaster
Hello Greg,
That is fine in my setup. I think then that I have a different problem, especially
with the system_filter. Ideally, is it sane to set
system_filter_user = exim
???
> Depends how it accepts the message. Is this via SMTP? SMTP-over-stdin
> (exim -bs)? Or a local message? In the latter two cases, I believe
> Exim will run as the person who ran "exim -bs" or "exim <recip>" or
> whatever. (Oh wait: it needs to write the message into the spool
> directory, in which case it will need to be $exim_user. So I suspect it
> will be root briefly, and then setuid() to $exim_user.)
I was thinking about a user submitting an e-mail in the ordinary way, via
an MUA.
Pls allow me to /dev/null the other content since they were clear.
If I do not setup system_filter_user = exim, then exim will run it as root, no?
And root is in the never_users list,so exim will write this to the paniclog.
I've seen it before, leading to this setting. However, I am not sure how this
affects the overall handling of filtered mail. In many cases, I (postmaster) have
rcvd the e-mail that is generated as follows
1. Sender A (some virus I guess) -> .exe file to userxx@mydomain
2. system_filter rejects and send the error mssg back (to some maybe non-existent address I think)
3. Remote server rejects the err mssg (because of possibly non-existent address still)
4. Rejection is sent to Mailer-Daemon/exim at mydomain.
I get the error mssg because postmaster, mailer-daemon == me
That is where my sanity issues are coming from.
I still cannot see clearly how to deal with this.
-Wash
--
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