On 10/18/11 02:09, Tom Cross wrote:
> Hi
> One of our customers has email and advises that they are not getting
> failed delivery messages, whether for no such user, mailbox full etc.
> They send out through Telstra SMTP and pull their mail from us.
> Is there a setting in Surge mail blocking this or should it be going
> back via Telstra.
> Below is a purpose miss spelt email addressHIDDEN@@techevent.com is
> correct, it was speltHIDDEN@@techevent.com .
> ==============================================
> Log File (d:\surgemail\logs/rec1110/msg111017.rec) ===========
> 2011-10-17 15:48:17.64 [27658086:2824] Rcpt 61.9.168.140
> HIDDEN@@tekevent.com> <dietre@tekevent.com> 0 "" 17
> 15:48:17[27658086:2824]Changed 61.9.168.140 HIDDEN@@tekevent.com>
> HIDDEN@@tekevent.com> 0 "[61.9.168.140] No such user (dietre) -ERR
>HIDDEN@@tekevent.com not found" 2011-10-17 15:48:22.67 [27658086:2824]
> Rejected 61.9.168.140 HIDDEN@@tekevent.com> <dietre@tekevent.com> 0 "No
> such user (dietre) -ERRHIDDEN@@tekevent.com not found" 2011-10-17
> 20:41:14.81 [27660127:3980] Rcpt 61.9.168.149 HIDDEN@@tekevent.com>
> HIDDEN@@tekevent.com> 0 "" 17 20:41:14[27660127:3980]Changed
> 61.9.168.149 HIDDEN@@tekevent.com> <dietre@tekevent.com> 0
> "[61.9.168.149] No such user (dietre) -ERRHIDDEN@@tekevent.com not
> found" 2011-10-17 20:41:19.83 [27660127:3980] Rejected 61.9.168.149
> HIDDEN@@tekevent.com> <dietre@tekevent.com> 0 "No such user (dietre)
> -ERRHIDDEN@@tekevent.com not found"
> ==============================================
> There has been no bounce received by the customer.
>
> Tom Cross
> Partner (Synergist)
> HTMLnet
> 0418 295 336
>HIDDEN@tml.com.au
> ** <http://www.html.net.au/>
>
>

Let's see, they are sending email with a From address that's on your 
server but sending via Telstra.

When sending the outbound message goes to Telstra for delivery, but in 
the SMTP exchange with the foreign server, Telstra's servers discover 
that the message is not deliverable.

However the From address is a foreign address to Telstra.  It would not 
surprise me if Telstra suppresses those NDR's in this situation due to 
spam abuse.

Lyle Giese
LCR Computer Services, Inc.