diff --git a/inbox.py b/inbox.py
index 27323cf4b..b93b73065 100644
--- a/inbox.py
+++ b/inbox.py
@@ -688,7 +688,7 @@ def save_post_to_inbox_queue(base_dir: str, http_prefix: str,
     """Saves the given json to the inbox queue for the person
     key_id specifies the actor sending the post
     """
-    if len(message_bytes) > 10240:
+    if len(message_bytes) > 20000:
         print('REJECT: inbox message too long ' +
               str(len(message_bytes)) + ' bytes')
         return None