Update Set-ExchangeServer.md

Added new (but not used) MitigationsApplied parameter and sorted.

Author: chrisda

exchange/exchange-ps/exchange/Set-ExchangeServer.md

@@ -29,8 +29,9 @@ Set-ExchangeServer [-Identity] <ServerIdParameter>
  [-ErrorReportingEnabled <Boolean>]
  [-InternetWebProxy <Uri>]
  [-InternetWebProxyBypassList <MultiValuedProperty>]
- [-MitigationsEnabled <Boolean>]
+ [-MitigationsApplied <MultiValuedProperty>]
  [-MitigationsBlocked <MultiValuedProperty>]
+ [-MitigationsEnabled <Boolean>]
  [-MonitoringGroup <String>]
  [-ProductKey <ProductKey>]
  [-StaticConfigDomainController <String>]
@@ -218,14 +219,11 @@ Accept pipeline input: False
 Accept wildcard characters: False
 ```
 
-### -MitigationsEnabled
-The MitigationsEnabled parameter specifies whether the EM Service will auto-apply mitigations on the Exchange server. Valid values are:
-
-- $true: The EM Service auto-applies mitigations on the Exchange server.
-- $false: Mitigations are not auto-applied on the Exchange server.
+### -MitigationsApplied
+Do not use this parameter. The EM service uses this parameter to store and track mitigation status.
 
 ```yaml
-Type: Boolean
+Type: MultiValuedProperty
 Parameter Sets: (All)
 Aliases:
 Applicable: Exchange Server 2016, Exchange Server 2019
@@ -242,6 +240,27 @@ The MitigationsBlocked parameter specifies a list of mitigations that are blocke
 
 To enter multiple values and overwrite any existing Mitigation entries, use the following syntax: `@("Entry1","Entry2",..."EntryN")`.
 
+```yaml
+Type: MultiValuedProperty
+Parameter Sets: (All)
+Aliases:
+Applicable: Exchange Server 2016, Exchange Server 2019
+
+Required: False
+Position: Named
+Default value: None
+Accept pipeline input: False
+Accept wildcard characters: False
+```
+
+### -MitigationsEnabled
+The MitigationsEnabled parameter specifies whether the Exchange Emergency Mitigation service (EM service) automatically applies mitigations on the Exchange server. Valid values are:
+
+- $true: The EM Service automatically applies mitigations on the Exchange server.
+- $false: Mitigations are not automatically applied on the Exchange server.
+
+For more information, see [Exchange Emergency Mitigation (EM) service](https://docs.microsoft.com/exchange/exchange-emergency-mitigation-service).
+
 ```yaml
 Type: Boolean
 Parameter Sets: (All)