diff --git a/nodes/rx300.py b/nodes/rx300.py
index 617ac08..293d86f 100644
--- a/nodes/rx300.py
+++ b/nodes/rx300.py
@@ -436,7 +436,7 @@ nodes['rx300'] = {
             },
         },
         'postfix': {
-            'message_size_limit_mb': 50,
+            'message_size_limit_mb': 75,
             'mynetworks': {
                 'gce',
                 'ovh',