diff --git a/test/mp_sync_test.py b/test/mp_sync_test.py
index 1b03d15..49911cf 100644
--- a/test/mp_sync_test.py
+++ b/test/mp_sync_test.py
@@ -70,10 +70,10 @@ def group_of_3_members():
 
     return enc_msg
 
-def new_address_peer_and_mail():
+def new_address_peer_and_mail(identity_flag = None):
     for action in [
         ("SoloB", [create_account, ["first@solo.b", "First SoloB"]]),
-        ("GroupA3", [create_account, ["second@group.a", "GroupA Second"]]),
+        ("GroupA3", [create_account, ["second@group.a", "GroupA Second", identity_flag]]),
         # key exchange
         ("SoloB", [send_message, ["first@solo.b",
                                   "second@group.a", 
@@ -129,6 +129,24 @@ def nokey_in_a_group_of_3_members():
         ("GroupA2", [decrypt_message, [enc_msg]], expect(pEp.PEP_rating.PEP_rating_reliable)),
     ] : yield action
 
+
+def not_for_sync_in_a_group_of_3_members(pre_actions=[]):
+    yield from group_of_3_members()
+    enc_msg = yield from new_address_peer_and_mail(pEp.identity_flags.PEP_idf_not_for_sync)
+
+    for action in pre_actions + [
+        (cycle_until_no_change, ["GroupA1", "GroupA2", "GroupA3"], expect(1)),
+        (flush_all_mails,),
+        ("GroupA1", [create_account, ["second@group.a", "GroupA Second", pEp.identity_flags.PEP_idf_not_for_sync]]),
+        (flush_all_mails, expect(0)),
+        ("GroupA2", [create_account, ["second@group.a", "GroupA Second", pEp.identity_flags.PEP_idf_not_for_sync]]),
+        (flush_all_mails, expect(0)),
+        ("GroupA2", [decrypt_message, [enc_msg]], expect(pEp.PEP_rating.PEP_rating_have_no_key)),
+        ("GroupA1", [decrypt_message, [enc_msg]], expect(pEp.PEP_rating.PEP_rating_have_no_key)),
+    ] : yield action
+
+
+
 if __name__ == "__main__":
     run_scenario(group_on_keygen)
     run_scenario(group_on_cannotdecrypt)
@@ -136,4 +154,5 @@ if __name__ == "__main__":
     run_scenario(keygen_in_a_group_of_3_members)
     run_scenario(group_survives_restart)
     run_scenario(nokey_in_a_group_of_3_members)
+    run_scenario(not_for_sync_in_a_group_of_3_members)
 
diff --git a/test/multipEp.py b/test/multipEp.py
index d4dbc90..9b4ea3f 100644
--- a/test/multipEp.py
+++ b/test/multipEp.py
@@ -34,9 +34,11 @@ handshakes_seen = []
 handshakes_validated = []
 msgs_folders = None
 
-def create_account(address, name):
+def create_account(address, name, flags=None):
     global own_addresses
     i = pEp.Identity(address, name)
+    if flags is not None:
+        i.flags = flags
     pEp.myself(i)
     own_addresses.append(address)