Paul Howarth <paul@xxxxxxxxxxxx> writes: > That would already have happened if the admins actually knew the > address that the offender subscribed with (which is not a oul.com.br > address). The admins might be able to loop over the mailing list recipients and send a message with a slightly different envelope and header From-line to each of them. They could then wait for the eventual bounces/challenges, look at the To-line and decode who they sent that to. -wolfgang -- Wolfgang S. Rupprecht http://www.wsrcc.com/wolfgang/ Direct SIP URL Dialing: http://www.wsrcc.com/wolfgang/phonedirectory.html