Hello,
We tried to integrate Outlook Access through VPN tunnel but no connection seemed possible. When looking at the DNS lookups we realized, that name resolution just works when the name looked up is in the FQDN format. Without domain identifier no lookup is possible. A lookup request from the internal network ist reselved just fine both ways. I've tried different DNS configurations on the Firewall and looked for a rule which could possibly block DNS-Requests but nothing solved the issue and I just don't know where to look anymore.
We are using a Sophos SG 115 with UTM Version 9.305-4
Thanks
Michael
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