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postini spam saturating my t1

I am using postini as my spam/virus vendor, my MX record points to them first than scan for spam/virus than deliver to my exchange 2003 server. I only allow a range of postini network to talk to my mail server. My firewall is Juniper SSG5. After doing some investigation, I find that my mail policy from postini to my exchange server is consuming most of my T1. I also experiment that when I disable this policy I get my T1 back. I spoke to my postini reseller and they said there is nothing they can do.
I am checking this website to see if anyone ran into this problem and found a fix?


thanks in advance
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officertango
Asked:
officertango
2 Solutions
 
BrianKronbergCommented:
Start up wireshark and see what the traffic is.
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ob1_Commented:
More info on using wireshark:
Connect a system with wireshark installed to a monitor port on your internet back-bone switch or main switch for your office (use the switch's web interface to configure a port as a monitor port).
Click Capture > Interfaces and select the correct NIC to capture data from
Let it run for however long you want - 5-10 minutes will do. Find out which machine is hogging up your bandwidth by going to Statistics > Endpoint List > Ethernet - sort the list by Bytes greatest to smallest and your culprit is at the top of the list. If you have a PC using a lot more bandwidth than all of the others then it might be infected or you might need to look closer at the user.
 
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officertangoAuthor Commented:
na
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