[Pkg-exim4-users] Cant receive mails

[Andreas Metzler]

On 2005-09-18 Phreaker <elpepo at phreaker.net> wrote:
>   I dont know why can't receive e-mails, I am using DynDNS with
>   DialUp and my temporary host is pepo.homelinux.org. I have
>   configured my exim4 (dpkg-reconfigure):

> Internet site //-// Name: pepo.homelinux.org //-// SMTP comming: 
> 127.0.0.1 //-// Destiny: pepo.homelinux.org //-// Relay domains: * //

Ouch. You have just configured an open relay. (Relay domains: *).

http://www.exim.org/exim-html-4.50/doc/html/spec_39.html#SECT39.36

Luckily you've also configured exim to only listen on the loopback
interface (127.0.0.1) so there is no real damage.

Please run through dpkg-reconfigure again and _read_ the description
before entering values.

>   I can't receive if send e-mails to <localUser>@pepo.homelinux.org; and if 
> try with:
> echo "testing my server" | mail -s "my subject" <localUser>@<temporaryIP> 
> I receive:
> <localUser>@<temporaryIP> : Unrouteable address

IP-adresses are not valid as domain part in email-adresses.[1]
              cu andreas

[1] There is away to use IP-adresses for e-mail routing,
address-literals. However there is special syntax
http://rfc.net/rfc2821.html#s4.1.3
and they are not enabled in the default configuration we ship.
http://www.exim.org/exim-html-4.50/doc/html/spec_18.html#CHAP18

-- 
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