My customer has only one server which is acting as AD3/E3k and currently has resource issues. He would like to place a new partner e3k as a front end bridgehead server. This bridgehead server would not host any mailboxes and would be dedicated to processing Unity voice messages.
I thought a front end server DOES support MAPI as long as you do not remove the store.
I will not call it a front end server a bridgehead server so as not to confuse things. I thought a bridgehead server will work as the bridgehead server will have a information store but no mailboxes will be created on it. The store will remain empty. This bridgehead server will filter the incoming message traffic to the back end mailbox servers therefore aleviating it from taxing the resources on one of the back end mailbox servers.
In Exchange 2003 a front-end server is different from a bridgehead server. A bridgehead server can have mailboxes on it, but usually doesn't (and can be a Unity partner server). A front-end server must not host any users/mailboxes.
I should have said a front-end server does not allow MAPI connections to front-end server mailboxes. When you tell Unity which partner server to use, it installs a system mailbox on the partner server and needs to connect to it using MAPI.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.