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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