this period of time customer mail system upgrade, basically the same as before, CAS+HUB NLB, DAG database,
p>
try creating a new mailbox. Error reporting
Load balancing failed to find a valid mailbox database.”
but if you choose a specific database it’s ok,
p>
after the search reasons are as follows:
1) select update RU6
for exchange sp1
2) check to see if the database has dismount
3) mail database server not installed, but I think this should appear this error 🙂
reproduced in: https://blog.51cto.com/4763146/987147 p>