diff --git a/conf/traccar.xml b/conf/traccar.xml
index ea3908c..a7e89a8 100644
--- a/conf/traccar.xml
+++ b/conf/traccar.xml
@@ -34,7 +34,7 @@
     <entry key='mail.smtp.starttls.enable'>false</entry> 
     <entry key='mail.smtp.username'>__APP__</entry> 
     <entry key='mail.smtp.password'>__MAIL_PWD__</entry>
-    <entry key='mail.smtp.from'>__APP__@__DOMAIN__</entry>
+    <entry key='mail.smtp.from'>__APP__@__MAIN_DOMAIN__</entry>
 
     <!--
     <entry key='ldap.url'>ldap://127.0.0.1</entry>
diff --git a/scripts/install b/scripts/install
index 326b105..0c9cbc2 100755
--- a/scripts/install
+++ b/scripts/install
@@ -9,6 +9,8 @@
 source _common.sh
 source /usr/share/yunohost/helpers
 
+main_domain=$(cat /etc/yunohost/current_host)
+
 #=================================================
 # APP "BUILD" (DEPLOYING SOURCES, VENV, COMPILING ETC)
 #=================================================