Apple Mail and Exchange 2007 maximum attachment size

Hello Experts!
I have a problem with the MAC clients in my organisation, that are using Apple mail and connect to a Exchange 2007 SP2 Server on a SBS 2008. All the Apple Mail clients are unable to send attachements bigger than 9,8 MB. On the Outlook clients everything is working well.
I've already configured the Exchange Activy Sync policy and also the other default attachment settings.

Has anyone the same problem and probably knows the solution for this issue?

Thanks you very much in advance!
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KirschgruenTobyAuthor Commented:
For all don't want to read the whole thread strung posted:

- go to: '\Program Files\Microsoft\Exchange Server\ClientAccess\exchweb\ews'
- edit  the file  'web.config'
- serach for ''maxRequestLength'- value. Default ist 13420. Increase this value to 50000
- Save the file and close it.

Do the same on the following file:

C:\Program Files\Microsoft\Exchange Server\ClientAccess\Owa\web.config

Reboot the Exchange-Server.
This does the trick for me.

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