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microsoft, exchange server, 2003

i am wanting to block all users on my network from sending email attachments.. more specificaly, .tiff/.tif extentions.

this is for security reasons as we use a product called Volume which is a scanning software whic creates files as .tiff/.tif

all these file hold personal client information and i want to prevent any of my users being able to send these via email...

i have done some research and unfortunatly it seems like exchange does not support this feature yet you can block incoming attchments unfortunatly its not what i want..

help much appreciated :)
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Leon Teale
Asked:
Leon Teale
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1 Solution
 
Paul SolovyovskySenior IT AdvisorCommented:
If you have content filtering on your firewall you may have the capability to block it at the firewall level.  What type of firewall do you have?
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Leon TealePenetration TesterAuthor Commented:
i am currently using an ISA firewall....but not for long as we are looking to change..but for now i still need a solution
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Paul SolovyovskySenior IT AdvisorCommented:
you may be able to use ISA for content filtering.  I am not sure about its full capabilities but this should give you a start

http://www.isaserver.org/articles/2004outboundsmtprelay.html
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JoWickermanCommented:
Hi hexemes,

Try this:

http://msexchange.org/software/Content-Checking/

I used it and it works like a charm!

Cheers.
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Leon TealePenetration TesterAuthor Commented:
>>JoWickerman

:Hi hexemes,

Try this:

http://msexchange.org/software/Content-Checking/

I used it and it works like a charm!
>>


i am sorry but i am not prepared to pay $160 per 10 mailboxes purely on the shear size of our company.



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Leon TealePenetration TesterAuthor Commented:
paulsolov,

ok its just been made to my attention that the mail does not go trough the ISA but through an external source....it is heavily spam and virus filtered but does not stop content types.

any other sugestions?, anyone?
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Paul SolovyovskySenior IT AdvisorCommented:
If you're using a smarthost to send out email you may want to check if they have this capability.  I don't believe that Exchange does a good job of filtering emails outbound, normally a 3rd party app is used.
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Leon TealePenetration TesterAuthor Commented:
paulsolov,

yes i am aware exchange does not provide this feature and a 3rd party application will probably be needed i was just wondering then if there is another way? like i said our external filter does not support this feature either and if any one can think of another way to control outbound email attachments?

maybe even suggest freeware software i could use?
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Paul SolovyovskySenior IT AdvisorCommented:
If you're going for another solution in a short period of time as you've mentioned you may get a trial copy of software that wil be used in the future and see if you can get an extended trial license
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Leon TealePenetration TesterAuthor Commented:
have you got any you can think off?
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