We receive NDR 550 5.6.0." smtpsendrdstnottransmittable" when sending e-mail to mail-enabled Public Folder on Exchange 2003

You just installed Exchange 2007 or 2010 in coexistence with Exchange 2003 in order to proceed to migration. When performing tests you realise that you are unable to send any e-mail to the Public folders that are not yet replicated on the new server(s), or worse, you try to replicate the public folders to the…

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NDR storm between members of a distribution list in Exchange 2010/2007.

I recently came across a very interesting issue that is affecting Exchange 2007 all versions but also Exchange 2010 all versions as well. We have the following scenario: a distribution list that has external contacts, we have set the option on the distribution list “Send delivery reports to message originator”, external contact has an issue…

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Named Properties problems: A workaround

  If you are already familiarized with the named property concept on Exchange 2003…well this usually means that you had to deal with all the trouble it may cause. If not, there are a couple of links that might help you in building an understanding of what we are talking about: http://msexchangeteam.com/archive/2009/04/06/451003.aspx http://msexchangeteam.com/archive/2009/06/12/451596.aspx http://technet.microsoft.com/en-us/library/bb851492.aspx To…

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