On Tue, Oct 7, 2008 at 10:08 AM, <[EMAIL PROTECTED]> wrote: > Exchange 2003 SP2. We occaisionaly have users who get a few NDRs over a > couple of days from reipients they did not send to because of spammers > spoofing their email address. At 12:15 I have a user who began getting > hundreds of NDRs obviously as a result of a spammer sedning out a bulk email > package. These are coming in so fast the user is having a hard time keeping > up with the deleting. Anyway to prevent this crap? > Thanks.
Disconnecting your server from the Internet is the only sure way. If you use a Sender Authentication scheme (reply to this email before I let your email through kinda thing), it will help, but that "cure" is worse than the disease. Eventually, DKIM and other technologies will help, but they are a long ways off. Kurt ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ ~ http://www.sunbeltsoftware.com/Ninja ~
