troubleshooting Question

Block Incoming Emails at SMTP Level for certain addresses

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Hi All

I have SpamAssasin/Mailscanner/Postfix setup on a debian box

Alot of emails with NDR are being sent to me to accounts that do not exist mostly adihk@mydomain.net
I did not send those emails for sure. But I need a way to block these emails from reaching my Exchange 2003 backend in one way or the other. High ranking SPAM is being deleted but around 20% of those messages goes through as clean email. To a catch all account that forwards them to another account.

This is really annoying. Why would the same message if sent twice once be marked as high ranking spam and another time marked as clean ?

Thx
10/04/08
11:41:51 		dadihk@mydomain.net 	Undelivered Mail Returned to Sender 	3.4Kb 	0.38 	Clean
[  ] 	10/04/08
11:41:46 		adihk@mydomain.net 	Undelivered Mail Returned to Sender 	4Kb 	14.13 	Spam
[  ] 	10/04/08
11:41:44 		adihk@mydomain.net 	failure notice 	4.2Kb 	26.09 	Spam
[  ] 	10/04/08
11:41:35 		adihk@mydomain.net 	Undelivered Mail Returned to Sender 	5.8Kb 	30.55 	Spam
[  ] 	10/04/08
11:41:28 		adihk@mydomain.net 	Undelivered Mail Returned to Sender 	3.8Kb 	28.13 	Spam
[  ] 	10/04/08
11:41:28 		adihk@mydomain.net 	NOTICE: mail delivery status. 	4.1Kb 	22.30 	Spam
[  ] 	10/04/08
11:41:26 	alijawad1@gmail.com 	dsfasfwadfad@mydomain.net 	Test 	2.3Kb 	-1.73 	Clean
[  ] 	10/04/08
11:41:24 		adihk@mydomain.net 	Delivery Status Notification (Failure) 	4.8Kb 	31.72 	Spam
[  ] 	10/04/08
11:41:22 		adihk@mydomain.net 	Returned mail: see transcript for details 	4.3Kb 	4.80 	Clean
[  ] 	10/04/08
11:41:21 	kgllv@123.org 	expertus@mydomain.net 	Dare to ask for more! 	3.6Kb 	30.05 	Spam
[  ] 	10/04/08
11:41:21 	kgllv@123.org 	forward@mydomain.net 	Get hung like no one else 	3.1Kb 	30.58 	Spam
[  ] 	10/04/08
11:41:21 	{tnemin@bro.cic.fr 	3dzahabif@mydomain.net 	Bigger is almost always better 	2.1Kb 	21.81 	Spam
[  ] 	10/04/08
11:41:21 	aig@tutu.net 	mhina_gandinfo@mydomain.net 	Replica Purses 	3.4Kb 	37.10 	Spam
[  ] 	10/04/08
11:41:21 	service@dgtoday.cn 	fgadihk@mydomain.net 	ý¼ývýsý±ýýýý 	2.8Kb 	2.15 	Clean
[  ] 	10/04/08
11:41:19 		adihk@mydomain.net 	Delivery Status Notification (Failure) 	5.2Kb 	10.44 	Spam
[  ] 	10/04/08
11:41:19 		2adihk@mydomain.net 	failure notice 	4.6Kb 	23.38 	Spam
[  ] 	10/04/08
11:41:19 		adihk@mydomain.net 	**Message you sent blocked by our bulk email filter** 	3.2Kb 	6.37 	Spam
[  ] 	10/04/08
11:41:18 		adihk@mydomain.net 	$B%a!<%kAw?.%(%i!<(B 	4.3Kb 	21.66 	Spam
[  ] 	10/04/08
11:41:18 		adihk@mydomain.net 	Mail delivery failed: returning message to sender 	12.1Kb 	-0.26 	Clean
[  ] 	10/04/08
11:41:10 	cwady2@telefonica.es 	makkoukahmad@mydomain.net 	top collection 	2.8Kb 	30.76 	Spam
[  ] 	10/04/08
11:41:10 		w8wadihk@mydomain.net 	Delivery Status Notification (Failure) 	3.1Kb 	3.11 	Clean
[  ] 	10/04/08
11:41:08 		rsadihk@mydomain.net 	failure notice 	3.8Kb 	17.34 	Spam
[  ] 	10/04/08
11:41:08 		iadihk@mydomain.net 	Returned mail: see transcript for details 	4.6Kb 	20.08 	Spam
[  ] 	10/04/08
11:40:58 	kgllv@123.org 	freiham@mydomain.net 	Time to get it bigger 	3.4Kb 	30.47 	Spam
[  ] 	10/04/08
11:40:57 		npadihk@mydomain.net 	Delivery Status Notification (Failure) 	4.6Kb 	22.64 	Spam
[  ] 	10/04/08
11:40:57 		adihk@mydomain.net 	Mail delivery failed: returning message to sender 	4Kb 	20.61 	Spam
[  ] 	10/04/08
11:40:52 		adihk@mydomain.net 	Delivery Status Notification (Failure) 	4.3Kb 	27.35 	Spam
[  ] 	10/04/08
11:40:48 	teq420@nauticom.net 	addrcareers@mydomain.net 	Re: Hey Adidas 	1.6Kb 	39.13 	Spam
[  ] 	10/04/08
11:40:41 		5adihk@mydomain.net 	$B%a!<%kAw?.%(%i!<(B 	4.5Kb 	20.30 	Spam
[  ] 	10/04/08
11:40:30 	alijawad1@gmail.com 	info@mydomain.net 	Test Ignore 	2.3Kb 	-1.33 	Clean
[  ] 	10/04/08
11:40:25 		adihk@mydomain.net 	Returned mail: see transcript for details 	5.6Kb 	26.56 	Spam
[  ] 	10/04/08
11:40:05 	kgllv@123.org 	ediaq@mydomain.net 	Aim at new love victories 	3.3Kb 	30.41 	Spam
[  ] 	10/04/08
11:40:05 		fbadihk@mydomain.net 	Delivery Status Notification (Failure) 	4.4Kb 	24.55 	Spam
[  ] 	10/04/08
11:40:05 		adihk@mydomain.net 	Returned mail: see transcript for details 	6Kb 	25.29 	Spam
[  ] 	10/04/08
11:40:04 		usadihk@mydomain.net 	Undelivered Mail Returned to Sender
ASKER CERTIFIED SOLUTION
nociSoftware Engineer
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