[Kolab-devel] New KEP #10: Kolab SMTP Access Policy

[Jeroen van Meeuwen (Kolab Systems)]

In reponse to Gunnar's response forwarded to kolab-devel, please find here my 
response to his response.

Thank you ;-)

Gunnar Wrobel wrote:
> Hi Jeroen,
> 
> Quoting "Jeroen van Meeuwen (Kolab Systems)" <vanmeeuwen at kolabsys.com>:
> > Hi,
> > 
> > I've written an informational KEP on Kolab's SMTP Access Policy,
> > which I would
> > like you to review;
> > 
> >   http://wiki.kolab.org/User:Kanarip/Draft:Kolab_SMTP_Access_Policy
> 
> currently the wording of the KEP gives me the impression that is a
> description of the current status quo on the Kolab Server. I admit
> that I lacked the time to validate if you describe the current
> mechanisms or if there is any change to the current policies involved.
> If there is no change I wonder if there is any need for a KEP.

It is an informational KEP indeed, but one that intends to outline how the 
Kolab SMTP Access Policy is supposed to work.

For example, it seems to me kolabAllowSMTPFrom (which I want to rename to 
kolabAllowSMTPSender) is not implemented.

Equally important is the fact the policy is executed;

1) at a particular moment in the set of *_restrictions,
2) either for sender or recipient verification, or both, with or without 
allowing unauthenticated senders,
3) once per recipient.

Important are also an enhancement that enables a Kolab SMTP Access Policy to 
cache previously obtained results, and a description of how the policy 
matching should work.

> If
> there is a change to the current procedures and code involved I would
> expect this to be highlighted in the KEP. Pretty much like Georg also
> described the associated upgrade path and possible incompatibilites in
> most of his KEPs.
> 

Code has most definitely been created, but not so much changed, in order to 
allow what is described in the KEP as the way the Kolab SMTP Access Policy 
should work.

Kind regards,

Jeroen van Meeuwen

-- 
Senior Engineer, Kolab Systems AG

e: vanmeeuwen at kolabsys.com
t: +44 144 340 9500
m: +44 74 2516 3817
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