diff --git a/docker-compose.yml b/docker-compose.yml
index 249fc36..a6d34c4 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,7 +1,25 @@
+version: "3.4"
 services:
+  mail:
+    image: boky/postfix
+    restart: always
+    environment:
+      - ALLOWED_SENDER_DOMAINS=mail.${DOMAIN}
+    ports:
+      - "587:587"
+    container_name: "postfix"
+    volumes:
+      - ./host/keys/:/etc/opendkim/keys
   postgres:
     image: postgres
     restart: always
     environment:
       - POSTGRES_USER=server
       - POSTGRES_PASSWORD=${DATABASE_PASSWORD}
+    ports:
+      - "5432:5432"
+  redis:
+    image: redis
+    restart: always
+    ports:
+      - "6379:6379"