Configure Static Domain Controllers for an Exchange Server

This is an on-premises Exchange Server procedure. Use static domain controller settings only when you have a specific design or troubleshooting reason; leaving Exchange to discover suitable domain controllers is normally simpler.

Check the current settings:

Get-ExchangeServer -Identity EXCH01 -Status |
    Format-List StaticDomainControllers,StaticGlobalCatalogs

Example of assigning specific domain controllers and global catalog servers:

Set-ExchangeServer -Identity EXCH01 `
    -StaticDomainControllers DC01.contoso.local,DC02.contoso.local

Set-ExchangeServer -Identity EXCH01 `
    -StaticGlobalCatalogs DC01.contoso.local,DC02.contoso.local

Replace all example names with servers that are valid for your Active Directory site. Confirm DNS, replication and reachability before making the change.