Index: resources/config/config.toml
--- resources/config/config.toml.orig
+++ resources/config/config.toml
@@ -3,43 +3,43 @@
 #############################################
 
 [server.listener."smtp"]
-bind = ["[::]:25"]
+bind = ["0.0.0.0:25"]
 protocol = "smtp"
 
 [server.listener."submission"]
-bind = ["[::]:587"]
+bind = ["0.0.0.0:587"]
 protocol = "smtp"
 
 [server.listener."submissions"]
-bind = ["[::]:465"]
+bind = ["0.0.0.0:465"]
 protocol = "smtp"
 tls.implicit = true
 
 [server.listener."imap"]
-bind = ["[::]:143"]
+bind = ["0.0.0.0:143"]
 protocol = "imap"
 
 [server.listener."imaptls"]
-bind = ["[::]:993"]
+bind = ["0.0.0.0:993"]
 protocol = "imap"
 tls.implicit = true
 
 [server.listener.pop3]
-bind = "[::]:110"
+bind = "0.0.0.0:110"
 protocol = "pop3"
 
 [server.listener.pop3s]
-bind = "[::]:995"
+bind = "0.0.0.0:995"
 protocol = "pop3"
 tls.implicit = true
 
 [server.listener."sieve"]
-bind = ["[::]:4190"]
+bind = ["0.0.0.0:4190"]
 protocol = "managesieve"
 
 [server.listener."https"]
 protocol = "http"
-bind = ["[::]:443"]
+bind = ["0.0.0.0:443"]
 tls.implicit = true
 
 [storage]
@@ -64,9 +64,9 @@ level = "info"
 ansi = false
 enable = true
 
-#[server.run-as]
-#user = "stalwart-mail"
-#group = "stalwart-mail"
+[server.run-as]
+user = "_stalwart-smtp"
+group = "_stalwart-smtp"
 
 [authentication.fallback-admin]
 user = "admin"
