In the relaying options of the smtp server have you set "only the list below" and specified a list of ip's or a range of ip's? -----Original Message----- From: Margaret Wise [mailto:mxw@xxxxxxxxxxxx] Sent: Thursday, August 22, 2002 3:38 PM To: [ExchangeList] Subject: [exchangelist] relaying with Exchange 2000 http://www.MSExchange.org/ I have read Mark Fugatt's article "Understanding relaying and Spam with Exchange 2000" and thought that I had made all the necessary settings to stop relaying but it is still possible to use smtp to send mail between outside users. I have checked that the Connectors do not have "allow relaying " set. Can anyone advise what I should check next? Margaret Wise ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: robert@xxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub') This mail was content checked for malicious code and viruses by GFI MailSecurity. GFI MailSecurity provides email content checking, exploit detection and anti-virus for Exchange & SMTP servers. Spam, viruses, dangerous attachments and offensive content are removed automatically. Key features include: Multiple virus engines; Email content & attachment checking; Exploit shield - email intrusion detection & defence; Email threats engine - analyses & defuses HTML scripts, .exe files & more. In addition to GFI MailSecurity, GFI also produces the GFI FAXmaker fax server & GFI LANguard network security product ranges. For more information on our products, please visit http://www.gfi.com. This disclaimer was sent by GFI MailEssentials for Exchange/SMTP.