Re: per-recipient black- and whitelist

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Philippe Trolliet wrote:
> here is some additional information from
/var/log/maillog:
> 
> Feb 22 05:45:49 mail amavis[20790]: (20790-01) wbl:
(SQL) recip
> <p.trollietnovaware.de> blacklisted sender
<p.trollietnovatec-gmbh.de>
> 
> the mail is recognized as blacklisted but still sent
to
> p.trollietnovaware.de. do i have to set sth special
in postfix config
> files, maia.conf or amavisd.conf? 

Blacklisted items are treated as spam, so whatever destiny
you've
defined for spam will apply.  What is your
$final_spam_destiny set to in
amavisd.conf?  On your Maia Settings page for this
recipient, did you
select "Labeled", "Quarantined", or
"Discarded"?


> i want blacklisted mails to be rejected and sent back
to the sender.

That's not possible (or advisable) in this case.  When Maia
receives an
item from a blacklisted sender, it just discards it. 
Rejecting the mail
 is something that can only properly be done at the upstream
Postfix
instance, where the connection itself can be dropped before
the SMTP
"DATA" stage is reached.  Trying to reject the
mail after Postfix hands
it over to amavisd-maia would mean generating a separate
bounce message
(DSN) to be sent back to the (alleged) sender.  This is
discouraged due
to the fact that spammers and malware authors frequently
take advantage
of that mechanism to spam-by-proxy, and perpetrate a
distributed
denial-of-service attack.  It's safest to simply discard
blacklisted
items, so they can't do any harm to anyone.

- --
Robert LeBlanc <rjlrenaissoft.com>
Renaissoft, Inc.
Maia Mailguard <http://www.maiamail
guard.com/>

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it works now, thank you very much.
i forgot to set "mark spam in subject".

> -----Original Message-----
> From: maia-users-bouncesrenaissoft.com
> [mailto:maia-users-bouncesrenaissoft.com]On Behalf Of
Robert LeBlanc
> Sent: Donnerstag, 22. Februar 2007 06:43
> To: maia-users
> Subject: Re: [Maia-users] per-recipient black- and
whitelist
> 
> 
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Philippe Trolliet wrote:
> > here is some additional information from
/var/log/maillog:
> > 
> > Feb 22 05:45:49 mail amavis[20790]: (20790-01)
wbl: (SQL) recip
> > <p.trollietnovaware.de> blacklisted
sender <p.trollietnovatec-gmbh.de>
> > 
> > the mail is recognized as blacklisted but still
sent to
> > p.trollietnovaware.de. do i have to set sth special
in postfix config
> > files, maia.conf or amavisd.conf? 
> 
> Blacklisted items are treated as spam, so whatever
destiny you've
> defined for spam will apply.  What is your
$final_spam_destiny set to in
> amavisd.conf?  On your Maia Settings page for this
recipient, did you
> select "Labeled", "Quarantined", or
"Discarded"?
> 
> 
> > i want blacklisted mails to be rejected and sent
back to the sender.
> 
> That's not possible (or advisable) in this case.  When
Maia receives an
> item from a blacklisted sender, it just discards it. 
Rejecting the mail
>  is something that can only properly be done at the
upstream Postfix
> instance, where the connection itself can be dropped
before the SMTP
> "DATA" stage is reached.  Trying to reject
the mail after Postfix hands
> it over to amavisd-maia would mean generating a
separate bounce message
> (DSN) to be sent back to the (alleged) sender.  This is
discouraged due
> to the fact that spammers and malware authors
frequently take advantage
> of that mechanism to spam-by-proxy, and perpetrate a
distributed
> denial-of-service attack.  It's safest to simply
discard blacklisted
> items, so they can't do any harm to anyone.
> 


-- 
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It has removed 3636 spam emails to date.
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.com/len


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