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Does the group show in ADUC on the Exchange 2003 server with an email address?<br />
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-M
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Does the group show in ADUC on the Exchange 2003 server with an email address?

-M

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I am migrating from Exchange 2003 to 2007. &nbsp;When I create a Distribution Group from Exchange 2007, I cannot get E-mail from the internet even though my E-mail Filter shows that it has been received. &nbsp;If I create a DG from the Exchange 2003 server, I can receive mail from the internet. &nbsp;By the way, I can receive mail internally. 
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I am migrating from Exchange 2003 to 2007.  When I create a Distribution Group from Exchange 2007, I cannot get E-mail from the internet even though my E-mail Filter shows that it has been received.  If I create a DG from the Exchange 2003 server, I can receive mail from the internet.  By the way, I can receive mail internally. 

Distribution Groups Created in Exchange 2007

An email client, email reader or more formally mail user agent (MUA) is a computer program used to access and manage a user's email. A web application that provides message management, composition, and reception functions is sometimes also considered an email client, but more commonly referred to as webmail.