I am currently in the process of doing a Mircosoft Exchange cutover as suggested by my MS PFE. I have gone through and configured two CAS/HUB/MB servers behind a Barracuda NLB. I have moved one of my mailboxes to the 2010 server and internally I am able to get to it.
What my PFE has suggested is that before I change the MIP on my firewall is that I perform all the steps I have and everything should work (she called this our CAS cutover). After testing this for a week we should then do the Mailflow cutover.
Well, I feel like I have gone through every setting 10 times and although when I am logged into my computer at the office i am able to get my email. Also, I am can go to OWA and get my email (from internal), however I can't get email to come through to my phone, and I am unable to figure out what I am missing. Sorry if this is a jumbled mess, but I have been up the Majority of the night working on this.
Here is my setup:
Exchange 2007 Environment
1 Exchange 2007 Edge Transport Server
1 Exchange 2007 Server
Exchange 2010 Environment:
2 Barracuda 340 Load Balancers
2 Exchange 2010 SP1 Edge Transport servers
2 Barracuda 340 Load Balancers w/SSL Offloading enabled
2 Exchange 2010 SP1 CAS/HUB/MB servers
I have created the certificate with our email domain and all subject alternative names, as well as created the internal DNS record for legacy.domain.com and pointed that at our 2007 Exchange Server.
I have named the cas array cas.domain.com and put the DNS records in place for that.
I have imported the certificate to my Legacy.domain.com server, and enabled it for IIS and SMTP.
I have pointed all my external URL's on the Legacy.domain.com URL.
I have updated my internal DNS so that legacy.domain.com points to 2007 Exchange and email.domain.com points to 2010 Exchange.
Now, externally when I go to https://email.domain.com/owa I get the 2007 box still which makes sense as I haven't changed the firewall settings yet, however shouldn't 2007 be aware of 2010 and redirect accordingly. Also, ActiveSync is not working for me now either since I am on 2010 and supposedly that should be working as well.