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Hi Experts,<br />
<br />
I hope you can help with this. <br />
<br />
We are currently working on migrating from Exchange 2007 to 2010. As such part of the process involves moving mailboxes back a forth whilst we test certain factors. However we have noticed that some corruption occurs to mailboxes going back from 2010 to 2007?<br />
<br />
We seem to always get the error <br />
&quot;Warning: Failed to reset the target mailbox after the move.<br />
Error details: Not connected.&quot;<br />
<br />
After which sometimes the mailbox becomes inaccessible<br />
<br />
Any ideas why this occurs as i thought migration between the two exchange versions was supported?
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Hi Experts,

I hope you can help with this. 

We are currently working on migrating from Exchange 2007 to 2010. As such part of the process involves moving mailboxes back a forth whilst we test certain factors. However we have noticed that some corruption occurs to mailboxes going back from 2010 to 2007?

We seem to always get the error 
"Warning: Failed to reset the target mailbox after the move.
Error details: Not connected."

After which sometimes the mailbox becomes inaccessible

Any ideas why this occurs as i thought migration between the two exchange versions was supported?

Mailbox migration completed with warnings

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.

Exchange

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.

Outlook

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.