diff --git a/dotenv b/dotenv
index 2b739cb..758d87d 100644
--- a/dotenv
+++ b/dotenv
@@ -16,6 +16,10 @@ ORG_URL='https://inventaire.example.org'
 # Users receiving emails from the instance can reply to this
 CONTACT_ADDRESS='contact@inventaire.example.org'
 
+MAILER_SMTP_HOST=smtp.example.org
+MAILER_SMTP_PORT=587
+MAILER_SMTP_USERNAME=your_username_on_smtp.example.org
+MAILER_SMTP_PASSWORD=your_password_on_smtp.example.org
 
 ########
 # Everything below is a default configuration
diff --git a/inventaire/docker-entrypoint.sh b/inventaire/docker-entrypoint.sh
index 897f062..bc1810c 100755
--- a/inventaire/docker-entrypoint.sh
+++ b/inventaire/docker-entrypoint.sh
@@ -19,7 +19,19 @@ module.exports = {
   },
   elasticsearch: {
     origin: 'http://elasticsearch:9200',
-  }
+  },
+  mailer: {
+    disabled: false,
+    nodemailer: {
+      host: '${MAILER_SMTP_HOST}',
+      port: ${MAILER_SMTP_PORT},
+      auth: {
+        user: '${MAILER_SMTP_USERNAME}',
+        pass: '${MAILER_SMTP_PASSWORD}'
+      },
+    },
+  },
+
 }
 EOF