Hello All, Example: Mr A(Mr.A@gmail.com) uses a gmail account to send email to Mr.B (Mr.B@test.com). Mr A received a NDR. From: "Mail Delivery Subsystem" <mailer-daemon@googlemail.com> Date: xxx Subject: Delivery Status Notification (Failure) To: <Mr.A@gmail.com> Delivery to the following recipient failed permanently: Mr.B@test.com Technical details of permanent failure: Google tried to deliver your message, but it was rejected by the recipient domain. We recommend contacting the other email provider for further information about the cause of this error. The error that the other server returned was: 550 550 Rule imposed mailbox access for this user is refused: user invalid (state 14). =========================================== My question is, can the NDR be traced in the log file located in Mr.B's mail server? Thank you very much in advance.Thank you, msdn =) 99.9% of my questions have been answered :D

i, If SMTP logging is enabled on the receive connector you should be able tok find traces of the SMTP communication there. Leif

On Fri, 27 May 2011 04:37:19 +0000, wnd4459 wrote: >Example: > >Mr A(Mr.A@gmail.com) uses a gmail account to send email to Mr.B (Mr.B@test.com). > >Mr A received a NDR. > >From: "Mail Delivery Subsystem" <mailer-daemon@googlemail.com> Date: xxx Subject: Delivery Status Notification (Failure) To: <Mr.A@gmail.com> Delivery to the following recipient failed permanently: Mr.B@test.com Technical details of permanent failure: Google tried to deliver your message, but it was rejected by the recipient domain. We recommend contacting the other email provider for further information about the cause of this error. The error that the other server returned was: 550 550 Rule imposed mailbox access for this user is refused: user invalid (state 14). > >=========================================== > >My question is, can the NDR be traced in the log file located in Mr.B's mail server? Not in this case. The NDR appears to be generated by gmail when it received the 500 status code. The text accompanying the 500 error leads me to believe that it's not an Exchange server that gmail is sending the message to. --- Rich Matheisen MCSE+I, Exchange MVP --- Rich Matheisen MCSE+I, Exchange MVP

Thanks Leif Pedersen. Thanks Rich Matheisen, The NDR was generated when the user(Mr.A@gmail.com) sent an email to the recipient(Mr.B@test.com) in the exchange 2007 environment.Thank you, msdn =) 99.9% of my questions have been answered :D

On Sun, 29 May 2011 04:35:42 +0000, wnd4459 wrote: >The NDR was generated when the user(Mr.A@gmail.com) sent an email to the recipient(Mr.B@test.com) in the exchange 2007 environment. That may be so, but it doesn't mean that the message made it as far as your Exchange server. You cna check your SMTP receive protocol log files for evidence since you have the dat and time from the NDR sent to MR. A by gmail. You should find the SMTP conversation in the log files if Exchange was involved. --- Rich Matheisen MCSE+I, Exchange MVP --- Rich Matheisen MCSE+I, Exchange MVP

Thanks for your explanation, much appreciated. But, does a smtp log include NDR records?Thank you, msdn =) 99.9% of my questions have been answered :D

Hi, The SMTP log does not include the NDR's as such, but you will be able to tell if the remote server connects to your server at all or if the error is generated elsewhere. Leif

On Mon, 30 May 2011 08:33:02 +0000, wnd4459 wrote: >Thanks for your explanation, much appreciated. But, does a smtp log include NDR records? No, it doesn't, but you need to understand that a NDR is only sent by your server after it agrees to accept the responsibility to deliver the message and then discovers that it cannont fullfill that obligation. If you server refuses to accept eithet an entire message or one or more recipients, it's the responsibility of the transmitting server to generate and deliver the NDR. Looking at the text in the NDR I don't see anything that resenbles what Exchange would place in the 550 status code's text. If your server accepts a message for delivery and cannot complete the delivery you'll find a "FAIL" event (and a "DSN" event) in the message tracking logs. You'll also see, in the SMTP send log file a message from "<>" to the sender of the message. --- Rich Matheisen MCSE+I, Exchange MVP --- Rich Matheisen MCSE+I, Exchange MVP

Dear Leif and Rich, Thank you 2 very much for your explanation, much appreciated. Thank you guys for sharing your knowledge :)Thank you, msdn =) 99.9% of my questions have been answered :D