diff --git a/installer/data/ews/conf/ews.cfg b/installer/data/ews/conf/ews.cfg
index 476c224a..a45b05d7 100644
--- a/installer/data/ews/conf/ews.cfg
+++ b/installer/data/ews/conf/ews.cfg
@@ -15,6 +15,7 @@ username = community-01-user
 token = foth{a5maiCee8fineu7
 rhost_first = https://community.sicherheitstacho.eu/ews-0.1/alert/postSimpleMessage
 rhost_second = https://community.sicherheitstacho.eu/ews-0.1/alert/postSimpleMessage
+ignorecert = false
 
 [HPFEED]
 hpfeed = false