Exchange 2007 NDR problem

[Simcfc73]

Hi,

 

Its late and I can't get my head round this but some people who are sending our school emails they seem to be getting NDR records from BT rather than Zen...is this a hop problem or something I am doing wrong? Its intermittent and seems to affect only some users (I am waiting for a cert from RapidSSL which is not getting through at all) Any ideas???

 

From: Mail Delivery Subsystem

[mailto:[email protected]]

Sent: 26 August 2011 14:33

To: ******

Subject: Returned mail: Cannot send message within 1 day

 

The original message was received at Thu, 25 Aug 2011 13:33:35 +0100 (BST)

from c2beaomr10.ncs.ibs-infra.bt.com [10.87.14.170]

 

----- The following addresses had permanent delivery errors -----

^*****

[sukh]

1. Could be issue in transit or with your Exch.

2. Are you saying you can get emails from say hotmail, google and other domains?

3. Is the issue only with this one sender domain?

4. Post the full NDR.

[Simcfc73]

I think its an issue in transit, I set up my exchange to capture NDRs but there isn't any. Its more than one sender but this is the first to send me a NDR report, everything works fine with Google mail, yahoo etc.

 

Its with Zen to see if they can see owt up with it

[sukh]

1. Then I'd suspect the same, transit, MTA, ISP issue. Post back.