I've got listserv owners who are getting an unusual error for an unknown user. The unusual thing is that the unknown user is the address of the list that is sending the post. Here's the error From: System Administrator Sent: Friday, August 03, 2007 5:15 PM To: Dianne Olla Subject: Undeliverable: College Connection 2007-08 Planning Meeting - Dripping Springs HS Your message did not reach some or all of the intended recipients. Subject: College Connection 2007-08 Planning Meeting - Dripping Springs HS Sent: 8/3/2007 5:15 PM The following recipient(s) cannot be reached: [log in to unmask] on 8/3/2007 5:15 PM 550 5.1.1 <[log in to unmask]>... User unknown I've scanned the list to see whether they put the list address on it as a subscriber. The list address isn't a subscriber. > scan College_Connection_Dripping_Springs_HS_ACC-L ACC-L SCAN: No match. Subscribers were successfully added to this list so the server knows it exists and it's operational. Here's the list header PUT COLLEGE_CONNECTION_DRIPPING_SPRINGS_HS_ACC-L LIST PW=XXXXXXXX * * COLLEGE_CONNECTION_DRIPPING_SPRINGS_HS_ACC-L * * Owner= [log in to unmask] * Owner= [log in to unmask] * Editor= [log in to unmask] * Editor= [log in to unmask] * Notebook= No * Errors-To= Owner * Subscription= Owner * Validate= No * Review= Owners * Send= Editor * Reply-To= Sender,Ignore * Sender= None Thanks