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From: SushiSean on 20 Dec 2007 13:23
This is what I want to do.
I want to block NDRs from going out to any internet (external) user, but
allow them if the emails are from within our organization.
Is this possible?

On the EMC i have gone to OC -> Hub Transport -> Remote Domains and under
the Default domain I have unselected "allow non-delivery reports". I was
under the impression that would, at least, block all NDRs from going out, but
that is not the case. If I send an email from my gmail account to a
non-existing user, I will get an NDR stating so.

Whats up with that?
From: Bharat Suneja [MVP] on 20 Dec 2007 13:32
In your gmail test, is the NDR generated by your Exchange server or by
gmail?
If you have Recipient Validation (drop messages for non-existent
recipients/addresses) enabled, Exchange never accepts the messsage - in
which case the sending SMTP host generates the NDR.

--
Bharat Suneja
MVP - Exchange
www.zenprise.com
NEW blog location:
exchangepedia.com/blog
----------------------------------------------


"SushiSean" <SushiSean(a)discussions.microsoft.com> wrote in message
news:0AB14E22-CE2C-4575-80BA-704F0F530E48(a)microsoft.com...
> This is what I want to do.
> I want to block NDRs from going out to any internet (external) user, but
> allow them if the emails are from within our organization.
> Is this possible?
>
> On the EMC i have gone to OC -> Hub Transport -> Remote Domains and under
> the Default domain I have unselected "allow non-delivery reports". I was
> under the impression that would, at least, block all NDRs from going out,
> but
> that is not the case. If I send an email from my gmail account to a
> non-existing user, I will get an NDR stating so.
>
> Whats up with that?

From: SushiSean on 20 Dec 2007 13:55
You are right. The NDR seems to be generated by google, not my exchange
server.

Now the 2nd part to this, how do I allow NDRs for internal users? However,
i jsut tested it and it generated an NDR. Exactly what I wanted. Cool.


"Bharat Suneja [MVP]" wrote:

> In your gmail test, is the NDR generated by your Exchange server or by
> gmail?
> If you have Recipient Validation (drop messages for non-existent
> recipients/addresses) enabled, Exchange never accepts the messsage - in
> which case the sending SMTP host generates the NDR.
>
> --
> Bharat Suneja
> MVP - Exchange
> www.zenprise.com
> NEW blog location:
> exchangepedia.com/blog
> ----------------------------------------------
>
>
> "SushiSean" <SushiSean(a)discussions.microsoft.com> wrote in message
> news:0AB14E22-CE2C-4575-80BA-704F0F530E48(a)microsoft.com...
> > This is what I want to do.
> > I want to block NDRs from going out to any internet (external) user, but
> > allow them if the emails are from within our organization.
> > Is this possible?
> >
> > On the EMC i have gone to OC -> Hub Transport -> Remote Domains and under
> > the Default domain I have unselected "allow non-delivery reports". I was
> > under the impression that would, at least, block all NDRs from going out,
> > but
> > that is not the case. If I send an email from my gmail account to a
> > non-existing user, I will get an NDR stating so.
> >
> > Whats up with that?
>
>
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