Could it be that LDAP is allowed to be accessed by the internet? I'm not sure, but I think you can get the e-mail addresses of users using an LDAP query without being authenticated. The spammer could have used LDAP to retreive all e-mail addresses it can find and send spam to those addresses. -----Original Message----- From: exchange@xxxxxxxxxxx [mailto:exchange@xxxxxxxxxxx] Sent: Sunday, July 14, 2002 12:57 AM To: [ExchangeList] Subject: [exchangelist] RE: How'd they do that? http://www.MSExchange.org/ I have a question you say everyone got this message but did the message specifically send to their (your clients) email id or was it just a spam message? Check the header of the message and see who the recipients are. At 10:50 AM 7/12/2002 -0700, you wrote: >http://www.MSExchange.org/ > >Thanks for the response, Frank. I'm really new to Exchange. Could you >go into more detail? > >-----Original Message----- >Perhaps a mail-enabled security group (like perhaps Domain Users)??? >____________________ FRANK WAKELIN >NETWORK ANALYST > >*********************************************************************** >***** >This message is intended for the sole use of the individual and entity to >whom it is addressed, and may contain information that is privileged, >confidential and exempt from disclosure under applicable law. If you are >not the intended addressee, nor authorized to receive for the intended >addressee, you are hereby notified that you may not use, copy, disclose or >distribute to anyone the message or any information contained in the >message. If you have received this message in error, please immediately >advise the sender by reply email and delete the message. Thank you very >much. > >------------------------------------------------------ >You are currently subscribed to this MSExchange.org Discussion List as: >exchange@xxxxxxxxxxx >To unsubscribe send a blank email to $subst('Email.Unsub') ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: andreacoppini@xxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')