Cant Send mail to users with firstname.lastname@example.org format addresses through exchange 2003
Whenever one of our users sends an email to or replies to an person which has the email format email@example.com then the mail doenst get sent - I get a message about a virtual mailbox error.
There was a SMTP communication problem with the recipient's email server. Please contact your system administrator.
<topaz.livingstone.com #5.5.0 smtp;550 <firstname.lastname@example.org>: Recipient address rejected: User unknown in virtual mailbox table>