Exchange 2007 voting issue with outlook

please see attached image "ex2007" where you will see the error reported by exchange troubleshooter. and i have also attached a snip showing the error in which you get back when trying to vote in outlook. please note this is only internal voting mail shouldnt be getting sent outbound or anything.
sorry had to cut out sensitive email address etc from snip
ex2007.bmp
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active8itAsked:
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dlmilleCommented:
detailed explanation of error codes : http://technet.microsoft.com/en-us/library/bb232118(v=exchg.80).aspx (Scroll down to see yours)

A bit better link that could be helpful and I'm basing my response on this:  http://www.petri.co.il/understanding-explaining-exchange-non-delivery-report-ndr.htm

1.  Looking right at the error you posted in the ex2007.bmp.  Have you proven to yourself that you can send test emails to each and every one of the email addresses in the distribution list (regardless of whether they are all internal)?

it appears, the problem is:
NDR 5.7.1 Delivery Not Authorized

The 5.7.1 status code may come with text saying Delivery Not Authorized.  Typically this error occurs if the sender attempts to send a message to a distribution group for which they are not authorized to use.  Often times, distribution groups are configured in such a way so that only remembers are allowed to send messages to the group.  This particular error may also occur if the message being sent matches conditions stipulated within a transport rule that would forbid the message from being sent.

So, I would test to see if you have authorization to send to the distribution group via a simple test message.

If you're able to do this without error (get a receipt for your sending so you know all got it in their inboxes, whether they reply back or not).

If you get this error message on a direct send, then you'll need to talk to the owner of the distribution group you are using to add you as a member, designated sender (as it appears these can be created such that the Transport rule can disallow sends from non-members to the group) or alternatively, create a new distribution group with the same members of that distribution group, and use that for your voting operation.

Please advise results of your testing.

Dave
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