Update Get-MailUser.md

Author: v-smandalika

exchange/exchange-ps/exchange/Get-MailUser.md

@@ -52,9 +52,9 @@ Get-MailUser [[-Identity] <MailUserIdParameter>]
  [<CommonParameters>]
 ```
 
-### LOBAppAccount
+### HVEAccount
 ```
-Get-MailUser [-LOBAppAccount]
+Get-MailUser [-HVEAccount]
  [-Filter <String>]
  [-OrganizationalUnit <OrganizationalUnitIdParameter>]
  [-ResultSize <Unlimited>]
@@ -216,20 +216,20 @@ Accept pipeline input: false
 Accept wildcard characters: False
 ```
 
-### -LOBAppAccount
+### -HVEAccount
 This parameter is available only in the cloud-based service.
 
-{{ Fill LOBAppAccount Description }}
+The HVEAccount switch parameter specifies, that this mail user is an account that is specifically used for the [High volume email service](/exchange/mail-flow-best-practices/high-volume-mails-m365). You don't need to specify a value with this switch.
 
 ```yaml
 Type: SwitchParameter
 Parameter Sets: LOBAppAccount
 Aliases:
 Applicable: Exchange Online, Exchange Online Protection
 
-Required: False
 Position: Named
 Default value: None
+Required: False
 Accept pipeline input: False
 Accept wildcard characters: False
 ```