How to stop bounces to unknown users?

I've had a domain name for 12 years now and it's become quite a spam magnet. I get thousands of spam emails daily and they totally glut up the message queue (and can really slow down the mail service).
I have been scouring the web looking for a way to turn of any response to an arriving email for an unknown user.
I'm fine accepting spam for a user that I know (and dealing with it at the client) but I'm tired of wasting bandwidth & cycles on a polite "I'm sorry, but there's no one here by that name) to spammers.
I think manually editing the main.cf file is the key. I tried enabling this directive - bit it didn't seem to change the behavior:
localrecipientmaps = unix:passwd.byname $alias_maps
#alias_maps = hash:/etc/postfix/aliases
I added some test emails addresses to the aliases file - but that also had no effect.
What am I doing wrong? Is there a better way to achieve this?
Thanks
Greg

See "Frontline spam defense for Mac OS X Server"
It's available here: http://osx.topicdesk.com/downloads/

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./imsimta version
iPlanet Messaging Server 5.2 HotFix 1.21 (built Sep 8 2003)
libimta.so 5.2 HotFix 1.21 (built 18:35:22, Sep 8 2003)
SunOS mum1pp1-a-fixed 5.8 Generic_117350-26 sun4u sparc SUNW,Sun-Fire-880
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To say clearly
Our user mail id is ([email protected]) but in the below output
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Mon, 27 Nov 2006 14:28:17 +0220
From:
Katharine Charles <[email protected]>
Subject:
Katharine wrote
To:
[email protected]
Message-ID:
<01c71230$47857fd0$6c822ecf@deborapms>
MIME-version:
1.0
X-MIMEOLE:
Produced By Microsoft MimeOLE V5.50.4133.2400
X-Mailer:
Microsoft Office Outlook, Build 11.0.5510
Content-type:
text/plain; charset=iso-8859-2
Content-transfer-encoding:
7bit
X-Priority:
3 (Normal)
X-MSMail-priority:
Normal
Thread-index:
Aca6Q0-'>UFR08/)'7T./Q5?V4@14+==
Original-recipient:
rfc822;[email protected]
X-Mozilla-Status:
8001
X-Mozilla-Status2:
00000000
X-UIDL:
10096-1043648961
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Hi,
1. The version of Messaging you're using, is very,
very old. If you do not have a support contract, you
should at least download and apply 5.2p2.
What difference does it makes ?? can you explain
me..So Jay doesn't have to re-explain this for the thousandth time.
5.2p2 contains hundreds of fixes and can pro-actively fix problems that you may have not hit yet. We always recommend that customers all use up-to-date software if possible. In the same way that you should be patching your Operating System and other applications.
my ques ...
What will happen if i'm using "dnsverify" keyword in
TCP local channel ??
can you explain me ??Do you mean the dns_verify keyword in the mapping table or the mailfromdnsverify channel keyword?
Either way I recommend you look at the iMS5.2 Admin Guide which explains both of these keywords and how to use them.
Regards,
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On Sat, 5 Apr 2014 01:20:04 +0000, thorwm wrote:
>All kidding aside, I did some searching in the forum and I found this post that may help?
>
>http://social.technet.microsoft.com/Forums/en-US/6037342d-2575-411b-a496-90d306f82b00/unable-to-stop-a-video-playing-using-updatecontextvideopause-true?forum=projectsiena
>
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>
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>
>
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How to stop bounces to unknown users?

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