I have both an Exchange 2010 server and Exchange 2013 server that I host for multiple clients across multiple businesses. I have a single client that has 3 domains to which they would like to have full e-mail control over. Here is what I mean.
Quick explanation of how we do it now:
We have a single Exchange account and then 2 POP3 accounts which deliver to the Exchange OST, we use Search folders to separate the mail into dedicated "Inboxes", when you reply it auto selects the account that it was sent to and all is well. HOWEVER, when you introduce smartphones and tablets, the POP3 accounts don't sync, thus all mail sent from those devices is only on the phone. Also, mail deleted on the phone is not deleted on the laptop/tablet etc.
OK moving on...
Client A owns and operates 3 different businesses to which they want all e-mail contact to be completely separate from each other. They must be able to send and receive messages to each domain.
You get the picture. So if a message goes to John@businessA.com, he needs to be able to reply as John@businessA.com.
Then, due to the large number of e-mails received, they would like a Unified Inbox, which in all of my searching, I have not come up with a solution to show all Inboxes in a single Inbox. My only solution so far was a VB script that uses a search command to search multiple Exchange stores. All other search features only search within a single Exchange datastore and will not search the others.
Finally, all of these accounts (in theory) would be placed on the same Exchange box. I have no desire to build multiple Exchange boxes.
What I am finding is even trying to add multiple exchange accounts to a single Outlook profile I get an error because of dual authentication to the same server with different usernames and passwords.
Any thoughts? Suggestions? Need more info?