You are correct (I tested it, hope you don't mind). I don't know how you got on the list. You have to contact them to get off the list. It's totally automated though, so good luck. -----Original Message----- From: Bill Higgins [mailto:[EMAIL PROTECTED]] Sent: Friday, August 24, 2001 10:46 PM To: MS-Exchange Admin Issues Subject: Orbz Anyone had any dealings with these guys? http://www.orbz.org They say that my gateway machines are an "open relay". We are using the SMTP service out of the NT 4.0 Option Pack, SP6A I know I have them configured to only relay messages for our internal servers. Bill Higgins Lead NT Systems Engineer (415) 402-3444 office (415) 720-7053 cell [EMAIL PROTECTED] List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm