diff --git a/data/web/api/openapi.yaml b/data/web/api/openapi.yaml
index 09d613aa2..8f9e96590 100644
--- a/data/web/api/openapi.yaml
+++ b/data/web/api/openapi.yaml
@@ -1531,6 +1531,9 @@ paths:
                 port1:
                   description: the smtp port of the target mail server
                   type: string
+                user1:
+                  description: the username of the mailbox
+                  type: string
                 password:
                   description: the password of the mailbox
                   type: string