input: [Error Code] 0x80072ee2 0x80072ee7 0x80072efd 0x80072efe 0x80072ee0 0x80072f94 0x80040115 [Explanation] 
output: The migration tool encountered network timeouts while attempting to upload messages to Google servers. This may occur because the network was inaccessible or due to a slow network connection. Retrying the migration after some time or during during off-peak network hours may resolve this behavior. If not, set the registry keys below to extend network timeouts on the host machine. Please add or change the following values: - HKEY_CURRENT_USER\Software\Google\Google Apps Migration\Other\ResolveTimeoutSeconds > DWORD Value = 00000030 - HKEY_CURRENT_USER\Software\Google\Google Apps Migration\Other\ConnectTimeoutSeconds > DWORD Value = 00000030 - HKEY_CURRENT_USER\Software\Google\Google Apps Migration\Other\SendTimeoutSeconds > DWORD Value = 00000600 - HKEY_CURRENT_USER\Software\Google\Google Apps Migration\Other\ReceiveTimeoutSeconds > DWORD Value = 00000600 Note that the values above are in seconds, and may be adjusted to accommodate your network connection. If not a network issue, may be related to autodiscovery issues with Exchange. Create an admin profile in Outlook, tick "always allow" on any autodiscovery messageboxes if they appear, and try to open the mailboxes with this profile. If it succeeds, use this profile to migrate instead of entering the server name and user credentials.