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From: The Other Mike on 15 Dec 2008 21:57
Running Exchange 2003 with Outlook 2003. Over the last month or so
we've been having problems with not receiving mail from a couple of
different domains. We noticed the problem because we'd have one
person receive an email where another one was copied on it and one of
the two wouldn't receive it. Looking at the headers of these emails,
the person not receiving the copy would have an email address of
"IMCEAMAILTO-username+40<ourdomain>+2ecom @ sendingdomain.com" which
is why it's not received. Coming from one domain I ignored the
problem thinking it was only on their side...but now it's happened
with 3 different domains in the past month and I'm a bit concerned.
Any idea why this would happen? Is it definately something on their
sides or are we sending out this information in some way?? Or when
the email arrives, is it being defined that way? The only changes
we've made was to create a new OU and move some users into it...this
was about 3 months ago.
From: The Other Mike on 16 Dec 2008 20:08
On Tue, 16 Dec 2008 08:08:52 -0800 (PST), Jamestechman
<jamestechman(a)gmail.com> wrote:

> Normally these
>issues are remants of 5.5 migrations ie. ADC connectors and such. I'm
>assuming you are native Exchange 2003? First thing I would do is
>reboot the server and re-build RUS off hrs.

This server was a migration from 5.5 but that was before I got
there...about 3 years ago and the problem has only appeared over the
past 3 months. Did reboot the server last weekend after some updates
but will try rebuilding the RUS and see if that helps. Thanks.
From: Andy David {MVP} on 16 Dec 2008 22:09
On Tue, 16 Dec 2008 20:08:10 -0500, The Other Mike <noone(a)nowhere.net>
wrote:

>On Tue, 16 Dec 2008 08:08:52 -0800 (PST), Jamestechman
><jamestechman(a)gmail.com> wrote:
>
>> Normally these
>>issues are remants of 5.5 migrations ie. ADC connectors and such. I'm
>>assuming you are native Exchange 2003? First thing I would do is
>>reboot the server and re-build RUS off hrs.
>
>This server was a migration from 5.5 but that was before I got
>there...about 3 years ago and the problem has only appeared over the
>past 3 months. Did reboot the server last weekend after some updates
>but will try rebuilding the RUS and see if that helps. Thanks.


Thats not actually a "5.5" thing as much as a legacyExchangeDN / X.500
thing.

I dont think rebuilding RUS is going to do much good.

Did the users who are experiencing this have any changes made to their
specific accounts? ( How many people are we talking about here? )



From: The Other Mike on 17 Dec 2008 12:04
On Tue, 16 Dec 2008 22:09:15 -0500, Andy David {MVP}
<adavid(a)pleasekeepinngcheesebucket.com> wrote:

>Did the users who are experiencing this have any changes made to their
>specific accounts? ( How many people are we talking about here? )

The only changes that were made was that new OU's were created for
everyone and accounts were moved to their new OU. This was about 5
months ago...that's the latest change that was made. We're not
talking many...so far I know of 3 users being sent email from 3
domains this has happened to (we have about 100 users). But the
problem is that I only know of those because someone else was copied
on the email...otherwise we may never know so there could be more.
Originally I blamed the sending domain...having 3 incidents from 3
domains made me start to question that and I'm worried it's affecting
more people then I know about.

From: Andy David {MVP} on 17 Dec 2008 13:38
On Wed, 17 Dec 2008 12:04:12 -0500, The Other Mike <noone(a)nowhere.net>
wrote:

>On Tue, 16 Dec 2008 22:09:15 -0500, Andy David {MVP}
><adavid(a)pleasekeepinngcheesebucket.com> wrote:
>
>>Did the users who are experiencing this have any changes made to their
>>specific accounts? ( How many people are we talking about here? )
>
>The only changes that were made was that new OU's were created for
>everyone and accounts were moved to their new OU. This was about 5
>months ago...that's the latest change that was made. We're not
>talking many...so far I know of 3 users being sent email from 3
>domains this has happened to (we have about 100 users). But the
>problem is that I only know of those because someone else was copied
>on the email...otherwise we may never know so there could be more.
>Originally I blamed the sending domain...having 3 incidents from 3
>domains made me start to question that and I'm worried it's affecting
>more people then I know about.


This looks rather screwy though. "Our domain + Sendingdomain.com?" Is
the sender's domain really in that mangled address?



IMCEAMAILTO-username+40<ourdomain>+2ecom @ sendingdomain.com
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