Please can someone give me some guidance on this, I am planning a migration from exch 2003 > 2010 however I am struggling to get my head round how the Certs will work
We are not using split DNS but I plan to add a zone before the migration
1 x exchange 2003 from web users connect to webmail.domain.com - SSL certificate from trusted CA
2x exchange 2010 site 1
1x exchange 2010 site 2
I plan to run both in co-existence mode for a while so I will need to keep webmail. (Unless I reconfigure active sync devices)
What do I need to request certificate wise?
I planned to use mail.domain.com and MailDR.domain.com (for failover) for all external services but how would Activesync/OWA be routed to the 2003 server during the transition?