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IPS blocks E-Mail Attachements

Der_Stift
Hi all,

I do have a nooby question [[:)]]  I recently installed an exchange and put that server behind the Sophos UTM 9. For some old (historical) reasons there is a Postfix reverse proxy between the Exchange and the UTM.

To the UTM config:
- SMTP Proxy is disabled (due to those Postfix reasons)
- The Exchange server (internal IP) is listed in the SMTP-Server List (IPS -> Tab Advanced)
- The Exchange Server is protected by Web Server Protection and there are some NAT Rules für IMAP etc.

The Point is, that I had to disable the IPS for the Exchange Server because the IPS blocked every E-Mail with an attachement. 

Did I missconfigured anything? 

Best Regards and many thanks [[:)]]


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  • 0
    Yea you could do that too Barry. Of course the advanced option will fully exempt the server from ips.  This is also good for keeping ips from choking your cpu. Snort should really be called cpu hogger. [:)]
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  • 0
    Yea you could do that too Barry. Of course the advanced option will fully exempt the server from ips.  This is also good for keeping ips from choking your cpu. Snort should really be called cpu hogger. [:)]
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