When a posting is sent out and a given address fails; the remote mail-daemon, or something equivalent, sends back an error message to the address owner-listname alias. Since this is a reserved address it then fails again and an error gets sent to the owner regarding someone posting to the owner-listname address. Now since the owner still gets the error, is this the desired effect or am I missing something? Feel free to point me to the appropriate documentation, as maybe I missed the answer in my search. Peter Marques UNIX System Support Analyst Computing & Communication Services York University