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Multimedia File Rule does not work

Updated: 21 May 2010 | 2 comments
SymAQ's picture
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We deployed SMSMSE 6.0.9.286 on a Windows Server 2003 server. We're using the File Filtering Rules, so we enabled the "Multimedia File Rule" which uses the "Sample Multimedia File Names" list to filter the messages (action: quarantine multimedia file attachments).
It worked fine.
Later we decided to allow *.MP3 and *.WAV files in the messages, so we removed these extensions from the "Sample Multimedia File Names" list.
The problem is that after we deployed the changes on the SMSMSE the MP3 and WAV files are quarantined henceforward although we wanted to allow them in the messages.
I tried this on an older version (v6.0.8.262) and it worked same way.
In the "Sample Multimedia File Names.xml" (match type=wild cards) file I can see the changes - the *.MP3 and *.WAV extensions are missing - but the SMSMSE does not use correctly this configuration.
Any help/idea?

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SymAQ's picture
16
Nov
2009
1 Vote +1
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Solved: RTFM ;-) So, the key

Solved: RTFM ;-)
So, the key for this problem is that the Multimedia File Rule filters by the TRUE file type, not by the extension list found in the Sample Multimedia File Names list.
Sorry for disturbing.

Mick2009's picture
16
Nov
2009
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Many Thanks!

No trouble at all, SymAQ!  Actually, many thanks for ensuring that this info made its way into the forum.

One recommendation: detecting file types is (technically speaking) a difficult task for software scanners, especially when a decision has to be made within miliseconds as the file passes through the Exchange server.  SMSMSE 6 does a decent job of it, but I always make sure that I create file name rules as well.  Between the two sets of rules, the traffic of .mp3 files and silly video clips are kept to a minimum.

Thanks and best regards,

Mick 

With thanks and best regards,

Mick