try unsubscribe firstname.lastname@example.org
which is your real domain as evidenced by your mail header.
The unsubscriber can be picky for cases where domain names change or
get modified in transit.
PS: If you have a basic administrative question like Eugene and don't want
to bother the list, try mailing email@example.com
This archive was generated by hypermail 2.1.2 : Tue Jul 10 2001 - 17:20:42 EDT