diff --git a/types/office-js-preview/index.d.ts b/types/office-js-preview/index.d.ts
index 4bc2cfb61954cf..050dfd233dc905 100644
--- a/types/office-js-preview/index.d.ts
+++ b/types/office-js-preview/index.d.ts
@@ -17216,6 +17216,14 @@ declare namespace Office {
          *     <td>New messages and message replies</td>
          *   </tr>
          *   <tr>
+         *     <td>IPM.Note.SMIME</td>
+         *     <td>Encrypted messages that can also be signed</td>
+         *   </tr>
+         *   <tr>
+         *     <td>IPM.Note.SMIME.MultipartSigned</td>
+         *     <td>Clear-signed messages</td>
+         *   </tr>
+         *   <tr>
          *     <td>IPM.Schedule.Meeting.Request</td>
          *     <td>Meeting requests</td>
          *   </tr>
@@ -17267,6 +17275,14 @@ declare namespace Office {
          *     <td>New messages and message replies</td>
          *   </tr>
          *   <tr>
+         *     <td>IPM.Note.SMIME</td>
+         *     <td>Encrypted messages that can also be signed</td>
+         *   </tr>
+         *   <tr>
+         *     <td>IPM.Note.SMIME.MultipartSigned</td>
+         *     <td>Clear-signed messages</td>
+         *   </tr>
+         *   <tr>
          *     <td>IPM.Schedule.Meeting.Request</td>
          *     <td>Meeting requests</td>
          *   </tr>
diff --git a/types/office-js/index.d.ts b/types/office-js/index.d.ts
index 2471de7c43cb1f..fad6a329bf2d47 100644
--- a/types/office-js/index.d.ts
+++ b/types/office-js/index.d.ts
@@ -16958,6 +16958,14 @@ declare namespace Office {
          *     <td>New messages and message replies</td>
          *   </tr>
          *   <tr>
+         *     <td>IPM.Note.SMIME</td>
+         *     <td>Encrypted messages that can also be signed</td>
+         *   </tr>
+         *   <tr>
+         *     <td>IPM.Note.SMIME.MultipartSigned</td>
+         *     <td>Clear-signed messages</td>
+         *   </tr>
+         *   <tr>
          *     <td>IPM.Schedule.Meeting.Request</td>
          *     <td>Meeting requests</td>
          *   </tr>
@@ -17009,6 +17017,14 @@ declare namespace Office {
          *     <td>New messages and message replies</td>
          *   </tr>
          *   <tr>
+         *     <td>IPM.Note.SMIME</td>
+         *     <td>Encrypted messages that can also be signed</td>
+         *   </tr>
+         *   <tr>
+         *     <td>IPM.Note.SMIME.MultipartSigned</td>
+         *     <td>Clear-signed messages</td>
+         *   </tr>
+         *   <tr>
          *     <td>IPM.Schedule.Meeting.Request</td>
          *     <td>Meeting requests</td>
          *   </tr>