Local DNS server published Sophos UTM

Question

good afternoon. I apologize for the broken English. customizable products and came across the problem of the publication of the local DNS and mail server respectively to be the exact same problem. How can I publish a DNS port on a particular server? on TMG 2010 I had no such problem. thank you in advance. did as there www.sophos.com/.../115145.aspx

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Scott_Klassen · Answer

I'm very unclear as well why you would want to open up your Internal DNS to the outside world as well. Generally speaking, not something you'd want to do under normal circumstances. 
 
That being said, here's what a DNAT should look like:

Matching Condition 
For traffic from:	Internet IPv4 
Using service:	DNS 
Going to: External (WAN) (ADDRESS) 
 
Action 
Change the destination to: Host definition for your internal server 
And the service to: leave blank 
 
Check the box for automatic firewall rule. Save the DNAT, then toggle the status switch to turn the rule on.