[SOGo] Update to 5.0.0.20200910-1, fixes #3719

docker-compose.yml

@@ -159,7 +159,7 @@ services:
             - phpfpm
 
     sogo-mailcow:
-      image: mailcow/sogo:1.83
+      image: mailcow/sogo:1.84
       environment:
         - DBNAME=${DBNAME}
         - DBUSER=${DBUSER}