diff --git a/addons/mail_group/tests/common.py b/addons/mail_group/tests/common.py
index 03e2c64a478..82e57a2d158 100644
--- a/addons/mail_group/tests/common.py
+++ b/addons/mail_group/tests/common.py
@@ -55,8 +55,6 @@ class TestMailListCommon(MailCommon):
         })
         cls.test_group_valid_members = cls.test_group_member_1 + cls.test_group_member_2 + cls.test_group_member_4_emp
 
-        cls._init_mail_gateway()
-
         # Create some messages
         cls.test_group_msg_1_pending = cls.env['mail.group.message'].create({
             'subject': 'Test message pending',
diff --git a/addons/test_crm_full/tests/common.py b/addons/test_crm_full/tests/common.py
index bce1f749eb8..60e0348042b 100644
--- a/addons/test_crm_full/tests/common.py
+++ b/addons/test_crm_full/tests/common.py
@@ -13,7 +13,6 @@ class TestCrmFullCommon(TestCrmCommon, MockIAPReveal, MockVisitor):
     @classmethod
     def setUpClass(cls):
         super(TestCrmFullCommon, cls).setUpClass()
-        cls._init_mail_gateway()
         cls._activate_multi_company()
 
         # Context data: dates
diff --git a/addons/test_event_full/tests/common.py b/addons/test_event_full/tests/common.py
index d3bf3aa5eac..b79b16b574e 100644
--- a/addons/test_event_full/tests/common.py
+++ b/addons/test_event_full/tests/common.py
@@ -15,7 +15,6 @@ class TestEventFullCommon(EventCrmCase, TestSalesCommon, MockVisitor):
     @classmethod
     def setUpClass(cls):
         super(TestEventFullCommon, cls).setUpClass()
-        cls._init_mail_gateway()
 
         # Context data: dates
         # ------------------------------------------------------------