diff --git a/gitea/docker-compose.yaml b/gitea/docker-compose.yaml
index 681d9b1..8140e86 100644
--- a/gitea/docker-compose.yaml
+++ b/gitea/docker-compose.yaml
@@ -42,6 +42,7 @@ services:
     networks:
       - gitea
       - webproxy
+      - smtp-relay
 
   db:
     image: mariadb:${mariadb_version:-10.7}
@@ -66,4 +67,6 @@ networks:
   webproxy:
     external: true
     name: webproxy
-
+  smtp-relay:
+    external: true
+    name: smtp-relay
diff --git a/smtp-relay/README.md b/smtp-relay/README.md
new file mode 100644
index 0000000..fc18d89
--- /dev/null
+++ b/smtp-relay/README.md
@@ -0,0 +1,4 @@
+# smtp-relay
+
+ Simple postfix relay host for your Docker containers. Based on Alpine Linux.
+
diff --git a/smtp-relay/docker-compose.yaml b/smtp-relay/docker-compose.yaml
new file mode 100644
index 0000000..99e2fa1
--- /dev/null
+++ b/smtp-relay/docker-compose.yaml
@@ -0,0 +1,15 @@
+version: '3'
+services:
+  postfix:
+    image: boky/postfix
+    environment:
+      - RELAYHOST=${RELAYHOST}
+      - RELAYHOST_USERNAME=${RELAYHOST_USERNAME}
+      - RELAYHOST_PASSWORD=${RELAYHOST_PASSWORD}
+      - MASQUERADED_DOMAINS=${MASQUERADED_DOMAINS}
+    networks:
+      - smtp_relay
+
+networks:
+  smtp_relay:
+    name: smtp_relay