Do you have your server configured to send you a copy of NDRs? If so, turn it off. That will be the cause of the problems as your server is rejecting the messages. However if the server has recipient filtering enabled then you will not see the messages. http://www.amset.info/exchange/filter-unknown.asp
If the server isn't configured to send you a copy of NDRs then it could be back scatter. Recipient filtering is a good setting to have enabled anyway - I consider it almost mandatory. Simon. -- Simon Butler MVP: Exchange, MCSE Amset IT Solutions Ltd. e: [EMAIL PROTECTED] w: www.amset.co.uk w: www.amset.info Need cheap certificates for Exchange, compatible with Windows Mobile 5.0? http://CertificatesForExchange.com/ for certificates from just $23.99. Need a domain for your certificate? http://DomainsForExchange.net/ -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dave Stafford Sent: 25 April 2008 14:45 To: Exchange Discussions Subject: E-mail/Spam blasts on Exch 2003 Hopefully someone can give me some help or guidance. I am having a problem with my 2003 Exchange server (on a Win2k3 box) where I will get a blast of NDR's all with the same subject. This last 15 -10 minutes and then stops for anywhere from a few hours to 3 days and then happens again. Thought someone was spoofing me at first but I was able to match up a lot of the outbound errors in the error log with messages getting bounced back. It appears to be sending from my mail server. I have done numerous scans with almost everyone's AV package out there (Symantec, Sophos, Kaspersky etc...) and came up with one or two little things but most were easily removed and did not appear to be of the type that would fit this kind of activity. Anyone have any thoughts on what's going on or how to isolate the issue. Thanks in advance _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/read/?forum=exchange To subscribe: http://e-newsletters.internet.com/discussionlists.html/ To unsubscribe send a blank email to [EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. Attn: Discussion List Management 475 Park Avenue South New York, NY 10016 Please include the email address which you have been contacted with. _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/read/?forum=exchange To subscribe: http://e-newsletters.internet.com/discussionlists.html/ To unsubscribe send a blank email to [EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. Attn: Discussion List Management 475 Park Avenue South New York, NY 10016 Please include the email address which you have been contacted with.
