Answer
The moderator has explicitly denied the user the option to join or leave the list.
In this case, request Undefined was processing a DENY command from Undefined sent to the list Undefined.
This is the correct result, no action is required by you.
See Also:
- What options are there for joining/subscribing to a list?
- How do alerts work?
- What options are there for leaving/unsubscribing to a list?
- What is and how does moderation work?
Keywords:moderator deny join subscribe leave unsubscribe 8487