get Distribution Groups to recieve external mail for internal users with .com & .co.uk addresses

I have a customer with SBS 2011 and the Exchange server is configured to accept external mail to two domains within the organisation, domain.com and domain.co.uk which works fine no problem.

When I create a distribution group called Sales the default domain email address is registered to the group which is the .co.uk domain. any external mail sent to sales@ domain.co.uk are happily accepted and forwarded to the appropriate user members. Using EMC I added the domain.com address to the distribution group.  If an external email is sent to sales@domain.com the mail is bounced as the address is not recognized at the organisation .

Please could anyone let me know how I configure the Sales distribution group to accept external mail for both domains so that external emails sent to Sales@domain.co.uk and sales@domain.com are accepted and forwarded to the appropriate user members.
squashbertieAsked:
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Mark GalvinManaging Director / Principal ConsultantCommented:
Hi

Have you set the DL sales@domain.com to accept external mail?? By default new DLs will only accept internal and you and to set the DL o accept both.

I know how to do this in Office 365 (which is latest version of exchange) and would have thought its very similar in SBS 2011.

Thanks
Mark
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KwoofCommented:
I assume that both are in the hub transport accepted domains and other email addresses are receiving OK.

In the properties of your sales group (in EMC), go to Mail Flow Setting, and check the properties of Message Delivery Restrictions.  In here you can set where emails can come from.
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Nick RhodeIT DirectorCommented:
Just an assumption you have added sales.domain.com to the E-Mail Addresses listed under the DL?  If this is true the DL should recieve email from both.  Is the bounce coming from exchange or mailfilter?  You might have to add the sales.domain.com to your filter as accepted etc.
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squashbertieAuthor Commented:
Many thanks for your quick responses,

I can confirm that both the domains are in the Hub Transport Accepted Domains and I created a Email Policy for the second domain as well.  Everything seems to work fine all mailboxes are accepting external emails for both domain.co.uk and domain.com.  When I created the distribution group I have removed the authenticated users only  and have not setup any other filters.  Once I created the distribution group I then used EMC  to add the sales@domain.com to the email address.

How do I add the sales.domain.com filter as suggested.
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Mark GalvinManaging Director / Principal ConsultantCommented:
Hi

Are you able to post screen shoots (leaving out company/user info)?

Thanks
Mark
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Nick RhodeIT DirectorCommented:
So it is working.  As for adding the sales.domain.com I was refering to if you had a filter in place to reject email (like postini or mailmax etc).  You would have to add that email address to the list for it to be accepted otherwise any unknown address will automatically get rejected before reaching your exchange server.
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squashbertieAuthor Commented:
I will try and get some screen shots which shots would be most relevant is it just the Distribution group settings.

The sales@domain.com is still being rejected . I can confirm I do not have any filters set.
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squashbertieAuthor Commented:
Hi,

I decided to carry out a re-boot of the server and have just carried out a further test and it is now working!!! I received a reply from the postmaster that the email was delivered to user@domain.co.uk.

Many thanks for your time and help it was much appreciated
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