We currently have a domain xyz.com. We have also bought a new domain zzz.com. In xyz.com we have exchange 2003. In zzz.com we have not used as yet. We have licenses for exchange 2013 SP1 with 260 CALS. In future we will get rid of xyz.com.
xyz.com currently has windows server 2012 as DC and exchange 2003 with other file servers and application servers.The functional level of domain is at 2003
zzz.com currently uses gsuite for users email. We need to install exhchange 2013 and get the mails to this exchange server
Can 2 domains be on the same network? e.g. dc for xyz.com 10.10.10.5, dc for zzz.com 10.10.10.7
We would like to move to exchange 2013. Our possible solution is to install a domain controller for zzz.com and use that domain controller to install new exchange 2013. if we make the domains trust each other can users login to their mailboxes fine without any issues. Also how can i co-exist exchange 2013 and exchange 2003. Users in one domain should be able to access files email applications in another domain if I do put up a dc for zzz.com
What would be the best possible solution for my scenario?
Do you need to have a domain controller for any exchange installation? i need a confirmation on this
Can a child domain be created and exchange installed in it? i have read that there is only one exchange per forest
Where are exchange CALS used in exchange 2013? Can CALS cause users to be logged of or not been able to connect
If the number of CALS is per user basis and you have less CALS what happens. What are the consequences?e.g. if you have 50 cals and you have 400 users what happens?
Can the (2013 Exchange Server Standard CAL - User CAL) CALS be upgraded for exchange 2016?
What kind of cost would i be looking at if i go for exchange 2016?