Sender quota

[Bernhard Reiter]

On Friday 29 August 2008 16:16, Alain Spineux wrote:
> On Thu, Aug 28, 2008 at 10:03 PM, Volker Stoppe <Grenzlaeufer at gmx.net> 
wrote:
> > Has anyone tried before to implement
> > on his own hands a sender quota? 

There already is a tracker entry for this:
kolab/issue2743 (Stop users from sending email when close to reaching their 
quota)

So if somebody had something developed, my first stop would
be the tracker, second stop wiki. :)

> > It would be far better to disallow sending mails, 
> > if the quota is reached. I know that this feature is not implementd 
> > in Kolab, but maybe someone has 
> > scripted a solution on his own and could send a howto.
>
> Someone already asked something like that some day ago.

I've added Alain's following comment to the issue.

> You can write a postfix policy that will return a 45x or 55x code when
> the recipient mailbox is full.
> This can be easily  added to the smtpd_recipient_restrictions postfix
> option Your policy script must take care of aliases too and to resolve the
> recipient mailbox
> by querying  the ldap DB and finally check the quota usage of the
> recipient mailbox
> before to return the SMTP code.
 

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