Bug#440217: exim4-config: lowuid router is misplaced in order and breaks common setups

[Marc Haber]

On Mon, Sep 03, 2007 at 07:23:27PM +0200, Andreas Metzler wrote:
> On 2007-09-03 Marc Haber <mh+debian-packages at zugschlus.de> wrote:
> > On Thu, Aug 30, 2007 at 08:14:44PM +0200, Andreas Metzler wrote:
> [...]
> >> The current order causes another kind of breakage that is worse. The
> >> router breaks our default /etc/aliases:
> >> root: ametzler
> >> abuse: root
> 
> > The default /etc/aliases is created in exim4-config.postinst and
> > contains only aliases from mailer-daemon to postmaster and from
> > postmaster, nobody, hostmaster, usenet, news, webmaster, www, ftp,
> > abuse, noc and security to root.
> 
> > I need more evidence about brokenness.
> 
> Hello,
> ok, let me demonstrate. (I will split my answers to separate mails to
> prioritize the most importatnt stuff.)
> 
> After a fresh installation of exim4-conf I end up with
> this /etc/aliases:
> 
> # /etc/aliases
> mailer-daemon: postmaster
> postmaster: root
> nobody: root
> hostmaster: root
> usenet: root
> news: root
> webmaster: root
> www: root
> ftp: root
> abuse: root
> noc: root
> security: root
> root: ametzler
> 
> After enabling the lowuid router with
> FIRST_USER_ACCOUNT_UID = 1000
> abuse is undeliverable from remote addresses:

I won't call this a feature, but a "side effect". Solution: alias root
to itself (or directly to ametzler) in /etc/exim4/lowuid-aliases.

Greetings
Marc

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