On Sun, 16 Oct 2011 12:18:01 +0530
"J. Bakshi" <joyd...@infoservices.in> wrote:

> On Sun, 16 Oct 2011 08:31:30 +0200
> mouss <mo...@ml.netoyen.net> wrote:
> 
> > Le 12/10/2011 12:01, J. Bakshi a écrit :
> > > [snip]
> > >>
> > >> set the restriction before permit i.e
> > >>
> > >>>>> smtpd_recipient_restrictions =
> > >>>>>   check_recipient_access hash:/etc/postfix/restrictioinincoming,
> > >>>>>   permit_mynetworks,
> > >>>>>   permit_sasl_authenticated,
> > >>
> > >>
> > > 
> > > Thanks, already solved it :-)
> > 
> > 
> > that's a bad idea. an error in the map will make you an open relay. for
> > this reason, the general advice is to
> >     avoid using check_*_access before reject_unauth_destination
> >     in smtpd_recipient_restrictions.
> > 
> > assuming the default value of smtpd_delay_reject, you can simply move
> > that check_recipient_access to another restriction, for example:
> > 
> > smtpd_helo_restriction =
> >     check_recipient_access hash:/etc/postfix/restrictioinincoming
> > 
> > 
> > an alternative (that will also work for mail submitted via the sendmail
> > comand) is to use transport_maps:
> > 
> > nore...@example.com error:...
> > 
> > 
> > Note that if you don't want to receive errors for such mail, then you
> > should use a "null sender" (MAIL FROM:<>).
> > 
> > also, be sure to include informations for users to contact you if they
> > really need to (complain, unsubscribe, ... etc).
> 
> Hello Mouss,
> 
> I appreciate your advise. Many many thanks.
> 
> In caes of
> 
> nore...@example.com   error:...
> 
> how can I provide a notice to the users about whom to contact and how can I 
> also
> configure "null sender"  to avoid error mesg ?
> 
> once again thanks for your great advise.

Hello mouss,

Could you please give any clue or link to achieve this ?

Thanks

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