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We have a user who is relocating to a different office (London) from our HQ in Boston. &nbsp;The London office is a child domain of the Boston office, all within the same forest. &nbsp;In Boston, we have Exchange 2010 running, but in London we are still on Exchange 2007. &nbsp;I disabled the user's mailbox from Exchange 2010 in Boston, then created a new user account in London. &nbsp;Then I re-connected the disconnected mailbox to the new account in London. &nbsp;Now, when attempting to connect Outlook to the mailbox that lives in Boston, I get the following message &quot;Cannot open your default e-mail folders. &nbsp;Microsoft Exchange is not available. &nbsp;Either there are network problems or the Exchange server is down for maintenance.&quot; &nbsp;Any thoughts on how to resolve this?
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We have a user who is relocating to a different office (London) from our HQ in Boston.  The London office is a child domain of the Boston office, all within the same forest.  In Boston, we have Exchange 2010 running, but in London we are still on Exchange 2007.  I disabled the user's mailbox from Exchange 2010 in Boston, then created a new user account in London.  Then I re-connected the disconnected mailbox to the new account in London.  Now, when attempting to connect Outlook to the mailbox that lives in Boston, I get the following message "Cannot open your default e-mail folders.  Microsoft Exchange is not available.  Either there are network problems or the Exchange server is down for maintenance."  Any thoughts on how to resolve this?

Outlook Issue connecting to mailbox

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.