Manageengine Servicedesk DNS Settings

Manageengine Servicedesk DNS Settings

Hi,
We have a requirement to have two DNS settings in manageengine servicedesk (for fail over) 
We are currently using v9.0 build 9006
 
Under Admin > Users > Active Directory 
there is only 1 DNS setting available to enter
 
Can we get a second entry available? this is due to redundancy and failover purposes for active directory authentication
 
thanks
 

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