Everyone should read RFCs 821 and 822, and their successors 2821 and 2822. Anyone with an understanding of SMTP will understand how Spammers do their damage and can explain same to their users.
Ed Crowley MCSE+Internet MVP kcCC+I Tech Consultant hp Services Protecting the world from PSTs and Bricked Backups! -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of [EMAIL PROTECTED] Sent: Friday, August 02, 2002 9:04 AM To: Exchange Discussions Subject: messages from unknown sender Hi, We're using Exchange 5.5, sp4 and Trend Micro virus scanning which shows no viruses in our system. One of our users received a message from someone they don't know and they said she sent them a message with a suspicious attachment. She doesn't know this person or their email address yet they forwarded a copy of the message she allegedly sent to them. It definitely had her email address but she didn't send it. It looked like a Klez variant (the subject was "How are you"). Any ideas on how this happened? Thanks. _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED]
