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Manually add approved domains to approved list

There are a handful of domains that send to this domain that the SBS 2008 Exchange server is bouncing the messages.  How do you add a domain in Exchange 2007 so exchange won't bounce an email from a domain that doesn't have a PTR or the sending domain DNS records aren't 100% correct.  We've sent the domains instructions on how to fix the issue on their side but they refuse to fix them or don't understand how to.

Senerio:
XYC corp has domain XYC.com no PTR record and when it's delived to the server Exchange , the message is bounced.  

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breynolds01
Asked:
breynolds01
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1 Solution
 
ikshf143Commented:
Hi,

You can manually add a list of accepted Domains on the Exchange Server, go to the following location Open Exchange Management Console and Under Organization Configuration-->Hub Transport on the right hand side select Tab Accepted Domains and then from the actions pane Chose Add Accepted Domains.

Imran
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breynolds01Author Commented:
OK made the changes, we'll see if that fixes the delivery issue.  I'll post back.
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breynolds01Author Commented:
No go, that policy is for domains the exchange server will accept email for.  Once you apply them to the acdepted domains your can no longer email those domains as the server tries to deliver them locally.

Scenario:
Company A send to Company B.  Company B rejects email from sender based on no PTR, or dns issues from the sending domain Company A.  Company A doesn't know how to fix the issue or are not willing to fix the issue saying your the only company they can't send to.  Company B receives email from hundreds of domains daily without issue.  

Resolution would be to:  add the sending domain Company A to a specified accept list that will allow the message to be delivered to Comapny B based on this rule.
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MesthaCommented:
Sounds like the usual blame game - we can send to everyone else, so the problem is yours, not ours. (Really means, no one else has complained/cared).

Exchange 2007 doesn't reject email on its own.
Do you have the antispam filters enabled?
Otherwise it has to be third party software doing the rejecting and you need to look for a white list functionality.

Simon
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breynolds01Author Commented:
I believe the Anti-Spam filtering is on be default with the build of SBS 2008.

Under: EMC > ME > Organization Configuration > Hub Transport > Anti-spam > Everything listed is enabled.
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MesthaCommented:
You need to know which element they are failing on.
Exchange 2007 cannot block on the reverse DNS failure method - I don't think Microsoft are a fan of that solution as it can be time consuming for the server to resolve.

Do you have third party software on the machine?
Is your firewall doing SMTP scanning?

Simon.
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breynolds01Author Commented:
No third party sofware on the server, and the only firewall on the system is the Windows firewall.
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