diff --git a/tools/set_ttl_to_5_minutes.sh b/tools/set_ttl_to_5_minutes.sh
index 312fb5e3..cd1baa2e 100755
--- a/tools/set_ttl_to_5_minutes.sh
+++ b/tools/set_ttl_to_5_minutes.sh
@@ -1,2 +1,2 @@
 #!/bin/bash
-sed -i "s/^TTL=.*/TTL=1800/" /etc/mailinabox.conf
\ No newline at end of file
+sed -i "s/^TTL=.*/TTL=300/" /etc/mailinabox.conf