[ExchangeList] Re: IMF Whitelist

  • From: "Carl Houseman" <c.houseman@xxxxxxxxx>
  • To: <exchangelist@xxxxxxxxxxxxx>
  • Date: Thu, 24 Aug 2006 22:59:08 -0400

I can see why you'd want something better.  In addition to your aliasing
problem it means you can't use sender filtering for the intended purpose of
blocking senders.
But thanks for posting it, you never know when something like this might
come in handy.

From: exchangelist-bounce@xxxxxxxxxxxxx
[mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Marcel Stangenberger
Sent: Thursday, August 24, 2006 1:17 AM
To: exchangelist@xxxxxxxxxxxxx; exchangelist@xxxxxxxxxxxxx
Subject: [ExchangeList] Re: IMF Whitelist

Hi Carl,
the sender recipient trick is this : 

*       in Exchange System Manager navigate to Global Setting -> Message
Delivery and select Properties 

*       click the Sender Filtering Box 

*       click add and enter the email you want to whitelist 

*       check the Archive filtered messages and Accept message without
notifying sender of filtering 

*       click Apply, a warning box will appear, click ok and the ok again on
the properties box. 

at this point all the emails now listed in the sender filter will go into
the Filter directory, which by default is in: C:\Program
Files\Exchsrvr\Mailroot\vsi 1\Filter\ but your path my vary. now we have to
move the files from the Filter directory to the PickUp directory so that the
end user will actually get the mail. here is the batch script I use to
effect that outcome (all on a single line):

move "C:\Program Files\Exchsrvr\Mailroot\vsi 1\Filter\*.tmp" "C:\Program
Files\Exchsrvr\Mailroot\vsi 1\PickUp" 

after that just setup a scheduled task to run the batch file how ever often
you want it to run (i went with every ten minutes) and your whitelist is in

this works as long as the adres specified in the original "to" field of the
header is the recipient and there is no aliassing involved somewhere down
the line of mailservers is passes. If their is then this mail will be send
to the adres specified in the original "to" field which would then cause a
mail loop.
Thanks for the further info, i'll keep looking and if i find anything i'll
post it.


Van: exchangelist-bounce@xxxxxxxxxxxxx namens Carl Houseman
Verzonden: wo 23-8-2006 23:00
Aan: exchangelist@xxxxxxxxxxxxx
Onderwerp: [ExchangeList] Re: IMF Whitelist

What is the "sender recipient blocking trick with the batch file"?
AFAIK Microsoft did not build-in any whitelisting that would allow domains
or addresses to bypass IMF action.  Proper or improper, it just isn't there.
I would welcome anyone to prove me wrong on that.   It's a sore omission,
and one that ought to be corrected at some point, but I suspect the
correction, if any, will require E12.


From: exchangelist-bounce@xxxxxxxxxxxxx
[mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Marcel Stangenberger
Sent: Wednesday, August 23, 2006 3:07 PM
To: exchangelist@xxxxxxxxxxxxx
Subject: IMF Whitelist

Hi All,
i've been wondering if their is any "proper" or "inproper but good working"
way to do whitelisting of domains in exchange 2003 running IMF v2. I've
tried the sender recipient blocking trick with the batch file but this
causes a lot of headaches when e-mail adresses of recipients are not
rewritten but simply aliased on a unix box before it comes to the exchange
I did see some 3th party tools offering whitelisting capabilities to IMF but
i don't want to resort to buying any except as a last resort.
any information would be most appriciated.


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