diff --git a/data/web/inc/vars.inc.php b/data/web/inc/vars.inc.php
index 698d4252..c7e2174f 100644
--- a/data/web/inc/vars.inc.php
+++ b/data/web/inc/vars.inc.php
@@ -37,7 +37,7 @@ $autodiscover_config = array(
   'autodiscoverType' => 'activesync',
   // If autodiscoverType => activesync, also use ActiveSync (EAS) for Outlook desktop clients (>= Outlook 2013 on Windows)
   // Outlook for Mac does not support ActiveSync
-  'useEASforOutlook' => 'yes',
+  'useEASforOutlook' => 'no',
   // Please don't use STARTTLS-enabled service ports in the "port" variable.
   // The autodiscover service will always point to SMTPS and IMAPS (TLS-wrapped services).
   // The autoconfig service will additionally announce the STARTTLS-enabled ports, specified in the "tlsport" variable.