Here is my issue I will try and explain it as bast as one can. My client has 3 Exchange servers two of them are Exchange 2010 and one is Exchange 2003.
Each server is in is own location, the main server that all mail is set to is the Exchange 2003 server and we plan to upgrade it as soon as we can, then if the email needs to go to one of the other sites depending on the mailbox and what server it is on it been working great till yesterday, All servers are within the same AD Domain,
Yesterday one of the Exchange 2010 servers had a issue with memory issues and was down. Now the other server Exchange 2010 in a different location mail was not going though to it, I would have thought this would not have been a issue, But it was, I need to know why for my customer and myself.
My main question here is what needs to be changed if one server is down or offline what do I need to change so that if a Exchange 2010 server is down or Internet that mail would still be able to flow to the other server if there was a outage, Since other mailboxes for different users were on in. I
I hope my question is clear