Description of the error code "ErrorTemporaryServerError"

Domain: Exchange

Code: ErrorTemporaryServerError 

Type: Temporary error (Please try again later. If multiple temporary errors occur, contact support.)

Description: This is a temporary server error. In most cases, re-trying what you were doing will solve the issue. However, in case it does not, it might be related to the number of bytes that a web server will have available for the current operation.  This article from Microsoft's Knowledge Base contains a suggestion to solve this issue.

If the issue still persists after trying both suggestions listed above, please contact support and provide as much information as you can regarding the issue.