I just migrated users from a Exchange 2003 environment to a Exchange 2010 SP1 server. All went well except that I had two mailboxes that couldn't be migrated because of message corruptions. I exported the mailboxes to a pst file and then deleted the old mailboxes. I then created them on the new 2010 server, reconfigured the clients and imported the content without issue.
Now I have a unique problem, some users on the older desktops cannot access the shared calendars for those new mailboxes nor can they send email to those 2 new mailboxes. Yet everyone on our new RDS server environment has no issues with either. Any ideas?
Here are the errors we are getting:
1. When emailing this person from the older systems "The e-mail address you entered couldn't be found. Please check the recipient's e-mail address and try to resend the message. If the problem continues, please contact your helpdesk."
2. When trying to access the shared calendar from the older clients I get the image below.