diff --git a/config/settings/base.py b/config/settings/base.py
index 0846b5f4271622b3c0a3b02ad6c13e5f71aaf8f9..6ea727fcf3e08122e68494459ab15e4b8d1125cd 100644
--- a/config/settings/base.py
+++ b/config/settings/base.py
@@ -135,7 +135,7 @@ LOGOUT_REDIRECT_URL = 'home'
 SEND_XMPP_ALERTS = False
 SEND_PHONE_ALERTS = False
 SEND_EMAIL_ALERTS = False
-SEND_MATTERMOST_ALERTS = True
+SEND_MATTERMOST_ALERTS = False
 
 # igwn-alert group settings. the default development group is 'lvalert-dev'
 # for the container deployments, the variable will be overwriten by the 
diff --git a/config/settings/container/playground.py b/config/settings/container/playground.py
index 63646a45ac84f798aa67e376194025e6dbee28f1..8bd24f01b712a4a706ed7f998eb7829d62716c30 100644
--- a/config/settings/container/playground.py
+++ b/config/settings/container/playground.py
@@ -17,6 +17,9 @@ EMBB_MAIL_ADDRESS = 'gracedb@{fqdn}'.format(fqdn=SERVER_FQDN)
 #SEND_PHONE_ALERTS = False
 #SEND_EMAIL_ALERTS = False
 
+# Enable Mattermost alerts
+SEND_MATTERMOST_ALERTS = True
+
 # Add testserver to ALLOWED_HOSTS
 ALLOWED_HOSTS += ['testserver']
 
diff --git a/config/settings/container/test.py b/config/settings/container/test.py
index 0538b1db6427b62ab24f0bc7826cf55c8d051795..9a39aabdcdba473e280922b64f3d4607b5d2571f 100644
--- a/config/settings/container/test.py
+++ b/config/settings/container/test.py
@@ -51,6 +51,9 @@ INTERNAL_IPS = [
 #SEND_PHONE_ALERTS = False
 #SEND_EMAIL_ALERTS = False
 
+# Enable Mattermost alerts
+SEND_MATTERMOST_ALERTS = True
+
 
 # Set up Sentry for error logging
 sentry_dsn = get_from_env('DJANGO_SENTRY_DSN', fail_if_not_found=False)
diff --git a/config/settings/vm/dev.py b/config/settings/vm/dev.py
index 6edf9ffeceda23994d27d614a79a8dfac0b614db..10ff9f79a16df5db39cd1e4f910baa8e1b0ceee2 100644
--- a/config/settings/vm/dev.py
+++ b/config/settings/vm/dev.py
@@ -10,6 +10,7 @@ CONFIG_NAME = "DEV"
 # Debug settings
 DEBUG = True
 SEND_XMPP_ALERTS=True
+SEND_MATTERMOST_ALERTS=True
 
 # Override EMBB email address
 # TP (8 Aug 2017): not sure why?
diff --git a/config/settings/vm/playground.py b/config/settings/vm/playground.py
index 644a9c76bbc52640c05dceade2b351fe07476a63..8daaeec5827f6e9714e75794ee97795254029d2f 100644
--- a/config/settings/vm/playground.py
+++ b/config/settings/vm/playground.py
@@ -16,6 +16,9 @@ EMBB_MAIL_ADDRESS = 'gracedb@{fqdn}'.format(fqdn=SERVER_FQDN)
 # Turn on XMPP alerts
 SEND_XMPP_ALERTS = True
 
+# Turn on Mattermost alerts
+SEND_MATTERMOST_ALERTS = True
+
 # Enforce that phone and email alerts are off
 SEND_PHONE_ALERTS = False
 SEND_EMAIL_ALERTS = False
diff --git a/config/settings/vm/production.py b/config/settings/vm/production.py
index e98cc30ad3250c45c1aab07cb62a7dbc374a6111..9ba49c31b67feed76e926ce9dad94338559d7ae9 100644
--- a/config/settings/vm/production.py
+++ b/config/settings/vm/production.py
@@ -19,6 +19,7 @@ LVALERT_OVERSEER_INSTANCES = [
 SEND_XMPP_ALERTS = True
 SEND_PHONE_ALERTS = True
 SEND_EMAIL_ALERTS = True
+SEND_MATTERMOST_ALERTS = True
 
 # Safety check on debug mode for production
 if (DEBUG == True):