Okay, I think I understand everything so far as you have explained to danmtslatter, but I have an additional question regarding the setup of the Internal DNS Server.
I guess I should start by saying I already have a setup (which I inherited when I started working for the school district) where we have a Firewall providing NAT for us. There is both an internal and an external DNS server setup. Prior to my arrival, they had both DNS servers listed in the network settings of all machines. The problem I found is that I was unable to hit our mail server using the DNS name. We had to set almost everyone up using the IP Address for the mail server. While investigating this issue, I discovered that if I only used our internal DNS Server, I was able to get the mail server by DNS name about 85% of the time.
So, what I am wondering is if anyone can tell me, when setting up an Internal DNS server, should the internal server include an NS record for the external DNS server? I am wondering if this could be causing my continuing problems locating my mail server by it’s DNS name.
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