AD / Exchange 2003 disribution groups

RichIbizaSport · 11 Aug 2010 at 14:43

Hi guys, having a slight issues. I've inherited an already set up domain and exchange system. I'm reasonably new to this so please bare with me.

Exchange 2003 standard running on Windows Server 2003

I've been asked to create a mailbox: [email protected]

3 people in the organisation need access to email sent to this address.

The way things are already set up for other mailboxes for group access is universal distribution groups which are mailbox enabled. The requires users are then added in to this distribution group.

I've set this up, identical to other examples e.g [email protected] (which work).

I can email internally to [email protected] and it's forwarded correctly to the users of the group. But when attempting it from an external email (hotmail) I get delivery failure.

Am I missing something obvious?

I've already tried to create a user "sms" which is email enabled, this works fine, internally and externally.

Thanks

ethos · 11 Aug 2010 at 14:55

Have you double checked the group in ADUC has the correct e-mail addresses?

Also what NDR do you get back?

RichIbizaSport · 11 Aug 2010 at 15:01

Yes, definately the correct email.

Bog standard reply from hotmail:

This is an automatically generated Delivery Status Notification.

Delivery to the following recipients failed.

[email protected]

Boss also tried this morning using gmail:

Delivery to the following recipient failed permanently:

[email protected]

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 [email protected] is not a valid mailbox (state 14).

----- Original message -----

MIME-Version: 1.0
Received: by 10.229.117.136 with SMTP id r8mr9139797qcq.201.1281517359367;
Wed, 11 Aug 2010 02:02:39 -0700 (PDT)
Received: by 10.229.35.1 with HTTP; Wed, 11 Aug 2010 02:02:39 -0700 (PDT)
Date: Wed, 11 Aug 2010 10:02:39 +0100
Message-ID: <[email protected]>
Subject: test
From: Boss <[email protected]>
To: [email protected]
Content-Type: multipart/alternative; boundary=000e0cd5f6a4fa866b048d8882f9

test

ethos · 11 Aug 2010 at 15:22

Ok, under Exchange general in ADUC what are you seeing under message restrictions?

Make sure "From authenticated users only" isn't ticked.

tbz_ck · 11 Aug 2010 at 15:26

Also check that the distribution group has a valid external SMTP mail address for your domain (in ADUC under the Email Addresses Tab)

ethos · 11 Aug 2010 at 15:27

tbz_ck said:
Also check that the distribution group has a valid external SMTP mail address for your domain (in ADUC under the Email Addresses Tab)

Mentioned that in my first post

RichIbizaSport · 11 Aug 2010 at 15:36

ethos said:
Ok, under Exchange general in ADUC what are you seeing under message restrictions?

Make sure "From authenticated users only" isn't ticked.

This is not ticked.

Lol I'm tearing my hair out.

Thanks guys

ethos · 11 Aug 2010 at 15:53

Do you have any filtering in front of exchange for spam / etc...?

RichIbizaSport · 11 Aug 2010 at 16:44

Ah!!!!! Found an obscure little rule in MailMarshal. I did have a good scan over earlier, but I missed it. Well that was a fun 4 hours lol.

Thank you guys for the help