diff --git a/CloudronManifest.json b/CloudronManifest.json
index 2714464..3c9560a 100644
--- a/CloudronManifest.json
+++ b/CloudronManifest.json
@@ -6,10 +6,13 @@
   "changelog": "file://CHANGELOG",
   "tagline": "Modern GPS Tracking Platform",
   "version": "0.1.0",
+  "upstreamVersion": "5.0",
+  "minBoxVersion": "7.1.0",
   "healthCheckPath": "/",
   "httpPort": 8082,
   "addons": {
     "ldap": {},
+    "sendmail": {},
     "localstorage": {},
     "postgresql": {}
   },
diff --git a/start.sh b/start.sh
index 6a7dfc3..694ff38 100755
--- a/start.sh
+++ b/start.sh
@@ -30,6 +30,16 @@ xmlstarlet ed --inplace \
     --update '//properties/entry[@key="ldap.password"]' -v "${CLOUDRON_LDAP_BIND_PASSWORD}" \
     /app/data/traccar.xml
 
+xmlstarlet ed --inplace \
+    --update '//properties/entry[@key="mail.smtp.host"]' -v "${CLOUDRON_MAIL_SMTP_SERVER}" \
+    --update '//properties/entry[@key="mail.smtp.port"]' -v "${CLOUDRON_MAIL_SMTP_PORT}" \
+    --update '//properties/entry[@key="mail.smtp.starttls.enable"]' -v "false" \
+    --update '//properties/entry[@key="mail.smtp.from"]' -v "${CLOUDRON_MAIL_FROM_DISPLAY_NAME:-Traccar} <${CLOUDRON_MAIL_FROM_DISPLAY_NAME}>" \
+    --update '//properties/entry[@key="mail.smtp.auth"]' -v "true" \
+    --update '//properties/entry[@key="mail.smtp.username"]' -v "${CLOUDRON_MAIL_SMTP_USERNAME}" \
+    --update '//properties/entry[@key="mail.smtp.password"]' -v "${CLOUDRON_MAIL_SMTP_PASSWORD}" \
+    /app/data/traccar.xml
+
 chown -R cloudron /run/traccar /app/data
 
 echo "=> Start traccar-server"
diff --git a/traccar.xml.template b/traccar.xml.template
index d3ea423..82de28c 100644
--- a/traccar.xml.template
+++ b/traccar.xml.template
@@ -31,6 +31,14 @@
     <entry key='ldap.user'>##CLOUDRON_LDAP_BIND_DN##</entry>
     <entry key='ldap.password'>##CLOUDRON_LDAP_BIND_PASSWORD##</entry>
 
+    <entry key='mail.smtp.host'>smtp.gmail.com</entry>
+    <entry key='mail.smtp.port'>587</entry>
+    <entry key='mail.smtp.starttls.enable'>true</entry>
+    <entry key='mail.smtp.from'>YourAddress@gmail.com</entry>
+    <entry key='mail.smtp.auth'>true</entry>
+    <entry key='mail.smtp.username'>YourAddress@gmail.com</entry>
+    <entry key='mail.smtp.password'>YourPassword</entry>
+
     <!-- https://github.com/traccar/traccar/blob/8eecfdcf5c59f92158a6c339d1622e0e9d67968c/src/main/java/org/traccar/config/Keys.java -->
     <entry key='users.defaultDeviceLimit'>-1</entry>
     <entry key='media.path'>/app/data/media</entry>