Mac is not added to the domain.
it works on other networks(3g, diffrenet ISP) but not when connected locally on the network(where the exchange server is) it does not work.
i followed this article:
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More information is needed. What environment is there ? Is it your office or for personal use? If this is office, have you contacted the system admin person? Is there a firewall ? Or cyberoam ? Probably there is some security policy that you are not aware of.
Please provide more details.