diff --git a/otc_metadata/data/services.yaml b/otc_metadata/data/services.yaml
index 5c2e3af3..53359164 100644
--- a/otc_metadata/data/services.yaml
+++ b/otc_metadata/data/services.yaml
@@ -766,6 +766,13 @@ documents:
     service_type: sfs
     title: User Guide
     type: umn
+  - hc_location: usermanual/smg
+    link: /secure-mail-gateway/umn/
+    pdf_name: smg-umn
+    rst_location: umn/source
+    service_type: smg
+    title: User Guide
+    type: umn
   - hc_location: api/smn
     html_location: docs/smn/api-ref
     link: /simple-message-notification/api-ref/
@@ -1498,6 +1505,18 @@ services:
     teams:
       - name: docs-orchestration-rw
         permission: write
+  - repositories:
+      - environment: internal
+        repo: docs/secure-mail-gateway
+        type: gitea
+      - environment: public
+        repo: opentelekomcloud-docs/secure-mail-gateway
+        type: github
+    service_category: network
+    service_title: Secure Mail Gateway
+    service_type: smg
+    teams:
+      - name: docs-network-rw
   - repositories:
       - environment: internal
         repo: docs/software-repository-container