diff --git a/mailu/stack.env b/mailu/stack.env
index 2232038..d2966a7 100755
--- a/mailu/stack.env
+++ b/mailu/stack.env
@@ -15,10 +15,10 @@ SECRET_KEY=T1GSGDDBVRYF7UR7
 SUBNET=192.168.205.0/24
 
 # Main mail domain
-DOMAIN=sectorq.eu
+DOMAIN=mail.sectorq.eu
 
 # Hostnames for this server, separated with commas
-HOSTNAMES=sectorq.eu,mail.sectorq.eu
+HOSTNAMES=mail.sectorq.eu,sectorq.eu
 
 # Postmaster local part (will append the main mail domain)
 POSTMASTER=admin