diff --git a/dockerfiles/services/known/run-known.sh b/dockerfiles/services/known/run-known.sh
index 2d60492fe9f455668451745f68526fd76b71592d..309699f015ef74500c5b6ab636ae41eec804926f 100644
--- a/dockerfiles/services/known/run-known.sh
+++ b/dockerfiles/services/known/run-known.sh
@@ -74,8 +74,10 @@ echo "dbhost = '${DB_HOST}'"       >> /app/config.ini
 echo "dbuser = '${DB_USER}'"       >> /app/config.ini
 echo "dbpass = '${DB_PASS}'"       >> /app/config.ini
 echo "url = 'https://${URL}/'"     >> /app/config.ini
-echo "smtp_host = 172.17.42.1"     >> /app/config.ini
-echo "smtp_port = 25"              >> /app/config.ini
+echo "smtp_host = ${MAIL_HOST}"    >> /app/config.ini
+echo "smtp_port = ${MAIL_PORT}"    >> /app/config.ini
+echo "smtp_username = ${MAIL_USER}" >> /app/config.ini
+echo "smtp_password = ${MAIL_PASS}" >> /app/config.ini
 
 exec /run.sh