Hi,
I have recently migrated from Exchange 2003 to 2010. I migrated only few users. The users who have been migrated are able to send mail to each other as well as mails to users having their mailboxes in 2003. But the users in 2003 are not able to send mails
to people having mailbox in 2010.
Moreover, I have created a routing group connector, still the problem isn't solved.
