From 7259abc718f5eb991f83846b171ed5de6a2fe1d6 Mon Sep 17 00:00:00 2001
From: Tim <43141240+DeatPlayer@users.noreply.github.com>
Date: Mon, 17 Feb 2020 06:32:27 +0100
Subject: [PATCH] Added missing port in netstat command (#191)

In the netstat command for checking the standard-ports the port for "Dovecot ManageSieve" was missing
---
 docs/prerequisite-system.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/prerequisite-system.md b/docs/prerequisite-system.md
index 9fed182e7..8a9146aad 100644
--- a/docs/prerequisite-system.md
+++ b/docs/prerequisite-system.md
@@ -31,7 +31,7 @@ ClamAV and Solr are greedy RAM munchers. You can disable them in `mailcow.conf`
 Please check if any of mailcow's standard ports are open and not in use by other applications:
 
 ```
-# netstat -tulpn | grep -E -w '25|80|110|143|443|465|587|993|995'
+# netstat -tulpn | grep -E -w '25|80|110|143|443|465|587|993|995|4190'
 ```
 
 !!! warning