Merge pull request #11604 from paisvivekanand/patch-2

Update Set-MailContact.md

Author: chrisda

exchange/exchange-ps/exchange/Set-MailContact.md

@@ -84,6 +84,8 @@ Set-MailContact [-Identity] <MailContactIdParameter>
  [-UMDtmfMap <MultiValuedProperty>]
  [-UseMapiRichTextFormat <UseMapiRichTextFormat>]
  [-UsePreferMessageFormat <Boolean>]
+ [-UserCertificate <MultiValuedProperty>]
+ [-UserSMimeCertificate <MultiValuedProperty>]
  [-WhatIf]
  [-WindowsEmailAddress <SmtpAddress>]
  [<CommonParameters>]
@@ -1527,6 +1529,42 @@ Accept pipeline input: False
 Accept wildcard characters: False
 ```
 
+### -UserCertificate
+This parameter is available only in the cloud-based service.
+
+The UserCertificate parameter specifies the digital certificate used to sign a user's email messages.
+
+```yaml
+Type: MultiValuedProperty
+Parameter Sets: (All)
+Aliases:
+Applicable:  Exchange Online, Exchange Online Protection
+
+Required: False
+Position: Named
+Default value: None
+Accept pipeline input: False
+Accept wildcard characters: False
+```
+
+### -UserSMimeCertificate
+This parameter is available only in the cloud-based service.
+
+The UserSMimeCertificate parameter specifies the S/MIME certificate that's used to sign a user's email messages.
+
+```yaml
+Type: MultiValuedProperty
+Parameter Sets: (All)
+Aliases:
+Applicable: Exchange Online, Exchange Online Protection
+
+Required: False
+Position: Named
+Default value: None
+Accept pipeline input: False
+Accept wildcard characters: False
+```
+
 ### -WhatIf
 The WhatIf switch simulates the actions of the command. You can use this switch to view the changes that would occur without actually applying those changes. You don't need to specify a value with this switch.