Add logging info for untrusted sender

Gunnar Wrobel wrobel at pardus.de
Sat Nov 29 22:54:06 CET 2008


Quoting Loïc Elineau <loic.elineau at benefacere.fr>:

> I am not sure I explained my problem correctly:
> Actually, every user who wants to send mail with our servers has to
> authenticate its SMTP connection. We don't trust any network at all.
>
> The problem is, that when a user don't authenticate, the server  
> relay the mail
> if the recipient is the same as the unauthentified sender, just prefixing the
> sender with "UNTRUSTED".
>
> I don't want kolab to add "UNTRUSTED", I'd like it to respond with 550 error.

Should be possible by switching to "Reject forged from header" in the  
Kolab web admin "Service" tab.

Cheers,

Gunnar

> I am not sure SPF will be the right solution for this problem. Is it?
>
> Best regards,
>> >
>> > Is there a way to block untrusted sender if they pretend being from a
>> > domain at the kolab server? Another solution should be to add logging
>> > info to portfix.log (and thus eject them thew fail2log). But how to
>> > achieve this?
>> >
>> > best regards,
>>
>> SPF is the solution, but their is no support integrated into kolab yet.
>
> --
> Loïc Elineau
> http://www.benefacere.fr/
>
> _______________________________________________
> Kolab-users mailing list
> Kolab-users at kolab.org
> https://kolab.org/mailman/listinfo/kolab-users
>



-- 
______ http://kdab.com _______________ http://kolab-konsortium.com _

p at rdus Kolab work is funded in part by KDAB and the Kolab Konsortium

____ http://www.pardus.de _________________ http://gunnarwrobel.de _
E-mail : p at rdus.de                                 Dr. Gunnar Wrobel
Tel.   : +49 700 6245 0000                          Bundesstrasse 29
Fax    : +49 721 1513 52322                          D-20146 Hamburg
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