How to stop Exchange Server stripping attachments with mdb files in

We are being sent zip files from an external source which contain .mdb files and the Exchange server is removing them.

Is there any way to allow these through?

Thanks in advance for any assistance
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Leon TealePenetration TesterCommented:
Close Outlook.
Open the Registry Editor.
If you using Office XP/2002, expand the branches to HKEY_CURRENT_USER\ Software\ Microsoft\ Office\ 10.0\ Outlook\ Security
If you using Office 2003, expand the branches to HKEY_CURRENT_USER\ Software\ Microsoft\ Office\ 11.0\ Outlook\ Security

Create a new string value by selecting New and then String Value from the Edit menu.
Name the new value Level1Remove.
Double-click the new Level1Remove to edit it, and enter the filename extensions you'd like to stop Outlook from blocking. Extensions should be typed in lower case, without the dots (.), and separated by semicolons (;). For example, type
to allow .exe, .mdb, and .vbs attachments, respectfully.
Click Ok and then close the Registry Editor when you're done.
The next time you restart Outlook, you'll now be able to open previously-blocked attachments. (If an attachment is still blocked, you likely got the filename extension wrong.)
Leon TealePenetration TesterCommented:
you can do this at a server level by distributing it in group policy or you can just apply it to each machine if there is just one or two
rhiannondaviesAuthor Commented:
We are using Outlook 2007

and will these still come through if the Edge Server stripos them before they even hit the inbox?
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Leon TealePenetration TesterCommented:
doing what i did above allows them to come in and be opened etc..that is what you want correct?
rhiannondaviesAuthor Commented:
Thanks very much

I'll give it a try this afternoon and come back to you with the outcome
rhiannondaviesAuthor Commented:

This didn't work. The attchments are still being removed

Leon TealePenetration TesterCommented:
are you using any type of mail filter? or firewall?
rhiannondaviesAuthor Commented:
The mail comes into a Barrcuda then forwarded through an Exchnage Edge server amd on to the active mail server

We also have an ISA 2006 Server
rhiannondaviesAuthor Commented:
I have found the following useful links


However we do have Attachment filtering turned on but I am a little confused how to add an exception

It looks like you can use Set-AttachmentFilterListConfig -exceptionconnectors but then I ams tuck as I don;t know how to find the GUID of the connector

 This parameter specifies a list of connectors that should be excluded from attachment filtering. Attachment filters are not applied to e-mail messages that are received through these connectors. You must use the connector GUID to specify the ExceptionConnectors value.

rhiannondaviesAuthor Commented:
Ok I think I've done it as a temporary measure as we don't really want to add this permanently

In the Exchange Powershell console I ran

get-attachmentfilterentry and I could see the mdb entry

So I ran

remove-attachmentfilterentry FileName:*.mdb

which worked


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