[Kolab-devel] Kolab server - greylisting (long)

[Alain Spineux]

On Jan 22, 2008 12:47 PM, Gelpi Andrea <liste at gelpi.it> wrote:
> Andreas Micklei wrote:
> > Am Montag, 21. Januar 2008 schrieb Gelpi Andrea:
> >> Andreas Micklei wrote:
> >>> I have also installed postgrey and integrated it with kolab with a much
> >>> simpler although not as clean approach:
> >>>
> >>> - install postgrey as delivered for your Linux distribution (yum install
> >>> postgrey on CentOS)
> >>> - configure postgrey to listen on a TCP Port (for example 60000,
> >>> put 'OPTIONS="$OPTIONS --inet=60000"' into /etc/sysconfig/postgrey on
> >>> CentOS) - put a check policy line with the correct port number into your
> >>> kolab postfix main.cf ('check_policy_service inet:127.0.0.1:60000')
> >>> - enable postgrey startup during system startup ('chkconfig postgrey on'
> >>> on CentOS)
> >>>
> >>> In general just follow the instructions of your Linux distribution or
> >>> general instructions to set up postgrey. Just put the
> >>> check_policy_service line into the kolab postif main.cf instead of the
> >>> one that comes with your distribution.
> >> Please check postfix.sum I think now every mail is counted double.
> >
> > I read postfix.sum daily and it looks okayish to me. 76% was rejected
> > yesterday due to greylisting, RBL or unknown receipient. Please explain what
> > I should look for.
> >
>
> Well. Pflogsumm consider every connection to postfix as a new mail.
>
> Using an inet socket instead of a unix socket postifx.sum count every mail more
> than one time.
> Look at postfix.log and you'll find a first connection from outside, than a new
> connection from 127.0.0.1:1025 and another one from 127.0.0.1:1026.
>
> Kolab use 2 inet socket (amavis and kolabfilter), so every mail is counted in
> postfix.sum 3 times by pflogsumm script.
>
> If you now add postgrey as an inet socket I think every mail is counted one more
> time.

Postgrey is not a filter, this is only a policy!
The mail never leave the postfix queue.

>
> One year ago or perhaps more, I posted a modified pflogsumm script modified to
> count every mail only one.
>
> --
> ing. Andrea Gelpi
> ***************************************************
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-- 
Alain Spineux
aspineux gmail com
May the sources be with you