troubleshooting Question

slow internet speed

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kapoc asked on
ExchangeSBS
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Hi!
We have recently installed sbs 2003 premium, we are connecting to the internet via a adsl modem and symantec gateway security 320. The internet spped is slow! - even on the server. I have adjusted the all the rules for inbound traffic to no avail.

Is it possible there is a dns problem?

Nslookup finds the server correctly, but the mx record query for mail only give a non-authorative reply.
Thanks in advance for your help
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