diff --git a/global-conf.sh b/global-conf.sh
index fb182cab7e9ea35b94f97d9b485e0dabdb2d1999..80808313bd65d80b3e9810903750087c9dc31b61 100644
--- a/global-conf.sh
+++ b/global-conf.sh
@@ -43,6 +43,7 @@ EMAIL_SMTP_PWD=
 EMAIL_SENDER='support@ubicast.eu'
 # separate emails with comas in EMAIL_ADMINS
 EMAIL_ADMINS='sysadmin@ubicast.eu'
+PREMIUM_SUPPORT='0'
 
 # -- Wowza --
 WOWZA_LIVE_PWD='test'
diff --git a/tester.py b/tester.py
index 9fa611ab08f2d1e703d3db45c3a7214f81fb9384..b999b791280e720842f280233f7517723124b24d 100755
--- a/tester.py
+++ b/tester.py
@@ -371,6 +371,8 @@ class Tester():
                     if system_domain == 'monitor':
                         system_domain = 'Server'
                         system_type = '-'
+            if utils.get_conf('PREMIUM_SUPPORT') != '0':
+                system_domain = "[PREMIUM] %s" % system_domain
             if not recipients:
                 log('No recipients defined for email sending. Set a value for EMAIL_ADMINS.')
                 return 1