RFC 2821 states that MTAs must accept all mails from "<>", as they are delivery notification messages. Bouncing them, as a lot of mailers do, is not RFC compliant and a bloody nuisance :-)
Cheers, Phil --------------------------------------------- Phil Randal Network Engineer Herefordshire Council Hereford, UK > -----Original Message----- > From: Hurst, Paul [mailto:[EMAIL PROTECTED]] > Sent: 18 December 2001 10:57 > To: Exchange Discussions > Subject: RE: NDR's filling my mailbox > > > Chris, > > Why is it a 'stupid' option for null senders? > > Cheers > > Paul > > > -----Original Message----- > From: Chris Scharff [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, December 18, 2001 3:51 AM > To: Exchange Discussions > Subject: RE: NDR's filling my mailbox > > > Well at the moment I'm unable to access an Exchange 2000 > admin program to > pinpoint the answer to your questions... but the null sender message > filtering option is is under whatever the top object is in > the admin (Global > Settings?) on a message filtering tab I believe. The other > option is found > on the default SMTP virtual server I believe. > > However, I'm old and tired so my memory might be totally off. > > -----Original Message----- > From: Hooks, Tim > To: Exchange Discussions > Sent: 12/17/2001 3:15 PM > Subject: RE: NDR's filling my mailbox > > Thanks for your comments - where I can I find either of these options? > > -----Original Message----- > From: Chris Scharff [mailto:[EMAIL PROTECTED]] > Sent: Monday, December 17, 2001 3:59 PM > To: Exchange Discussions > Subject: RE: NDR's filling my mailbox > > > It's set on the SMTP virtual server. > > Also it appears that you are blocking mail with a null sender. While > Exchange certainly supports this option, it's a. a stupid > option and b. > non-RFC compliant. > > Chris > -- > Chris Scharff > Senior Sales Engineer > MessageOne > If you can't measure, you can't manage! > > > > -----Original Message----- > > From: Hooks, Tim [mailto:[EMAIL PROTECTED]] > > Sent: Monday, December 17, 2001 3:04 PM > > To: Exchange Discussions > > Subject: NDR's filling my mailbox > > > > > > Hi Everyone, > > > > I recently added an Exchange 2000 server to my site and moved > > over all my users, Public folders, and created a new SMTP > > connector. I am now getting about 200 NDR messages a day. > > They are mostly spam sent old addresses. The last lines read > > > > The e-mail account does not exist at the organization this > > message was sent to. Check the e-mail address, or contact > > the recipient directly to find out the correct address. > > < our_server.our domain.com #5.1.1 SMTP; 550 > > MAILBOX NOT FOUND> > > > > or > > A configuration error in the e-mail system caused the > > message to bounce between two servers or to be forwarded > > between two recipients. Contact your administrator. > > < our_server.our domain.com #5.4.6> > > > > or > > The format of the e-mail address is incorrect. Check the > > address, look up the recipient in the Address Book, or > > contact the recipient directly to find out the correct address. > > < our_server.our domain.com #5.1.3 SMTP; 553 From > > <>, message blocked.> > > > > > > Part of the problem is this - our email domain name has had 3 > > or 4 variations over the last five years, such that many of > > our users have 4 or 5 smtp addresses - [EMAIL PROTECTED], > > [EMAIL PROTECTED], [EMAIL PROTECTED], etc. So, email to the oldest > > address is not getting delivered, I seem to be unable to > > create any new SMTP addresses in the recipient policy that > > holds the highest priority. This puzzles me. > > > > The real big problem I have is that the NDR are being sent to > > everyone in the administrators group - very annoying. I can > > not find where to turn this off. The setting under the > > virtual smtp server, messages, forward a copy is blank and > > the smtp vitrual server has been restarted. Any ideas on how > > to get these from being delivered to the administrator's group? > > > > Thanks for your insights. > > > > Tim Hooks > > > > _________________________________________________________________ > 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] > > > ********************************************************************** > The information contained in this message or any of its > attachments may be confidential and is intended for the > exclusive use of the addressee(s). Any disclosure, > reproduction, distribution or other dissemination or use of > this communication is strictly prohibited without the express > permission of the sender. The views expressed in this email > are those of the individual and not necessarily those of Sony > or Sony affiliated companies. Sony email is for business use only. > > This email and any response may be monitored by Sony UK. > (05) > ********************************************************************** > > > _________________________________________________________________ > 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]
