My company has Exchange 2000 and we want to make an update to Exchange 2003.
I need to do it in stages and work in 2000 and 2003 together.
At the moment I have frontend server with OWA and backend with user mailbox.
In a test network it migrates frontend to 2003 and I cannot login to to
mailbox in 2000.
The error is -2147467259 (0x80004005)
Some additional configuration is necessary?
Thanks for your help
Adrian