diff --git a/postfix.yaml b/postfix.yaml
index 72ae588..ccb911c 100644
--- a/postfix.yaml
+++ b/postfix.yaml
@@ -1,16 +1,20 @@
 document: modulemd
 version: 1
 data:
-    summary: 
-    description:     license:
+    summary: Postfix Mail Transport Agent
+    description: Postfix is a Mail Transport Agent (MTA).
+    license:
         module: [ MIT ]
     dependencies:
         buildrequires:
             base-runtime: master
-            perl: master
+            # dependency on perl-generators
+            #perl: master
+            # add dependency because of mariadb, postgresql, tinycdb
+            common-build-dependencies: master
         requires:
             base-runtime: master
-            perl: master
+            #perl: master
     references:
         community: https://fedoraproject.org/wiki/Modularity
         documentation: https://fedoraproject.org/wiki/Fedora_Packaging_Guidelines_for_Modules
@@ -28,3 +32,12 @@ data:
                 rationale: A dependency of tangerine.
                 ref: f26
                 buildorder: 10
+            mariadb:
+                rationale: build dep of postfix
+                ref: master
+            postgresql:
+                rationale: build dep of postfix
+                ref: master
+            tinycdb:
+                rationale: build dep of postfix
+                ref: master