49754: Acronis Backup Advanced 11.7/11.5: Backup or Restore of Exchange Items Fails with "An expression test has failed"

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Symptoms

  1. You are backing up or restoring Exchange items.
  2. The operation fails with:
    Error code: 31 
    Module: 349 
    LineInfo: b1285f5aa633730c 
    Fields: Expression : userNameParts.size() == 2, $module : arx_agent_fork_vs_39029 
    Message: An expression test has failed. 

Cause

You have specified the user for the Exchange server as username@domain.

Solution

Specify the user as domain\username.

More information

Please contact Acronis Customer Central if you need assistance.

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