Worth checking the headers of the email and see if it really is generated by yourselves. If the NDRS are being generated with out a user sending an email, then it sounds more like spam emails. I.e someone has faked a from address (in this case from you domain) and send the email to an address that doesnt exist thus generating an NDR. HTH
john ________________________________ From: Al Rose [mailto:arose...@gmail.com] Sent: 11 May 2011 09:16 To: MS-Exchange Admin Issues Subject: User get NDRs without sending emails Hi I am seeing more and more of this problem in our environment (still running 2k3 SP2 Exchange servers): Users receive undeliverable NDRs without writing email. Been "googling" lately about it and apparently there are only two solutions: totally disable NDRs (we dont want to do that), or get an appliance (a magic one that will fix our problem). We currently use Antigen but only as an antivirus, as our antipsam filtering is done at a higher level where we dont have control. Anybody? --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe exchangelist ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.clearswift.com ********************************************************************** --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe exchangelist
