4913: Acronis Recovery for Microsoft Exchange Mailbox Backup Fails with "Method ATTACH_BY_(x) is not supported"

This article applies to:

Symptoms

  1. Using Acronis Recovery for Microsoft Exchange, you are performing a mailbox backup or recovery;
  2. The operation fails with one of the following error messages:

    Method ATTACH_BY_(2) is not supported
    Method ATTACH_BY_(3) is not supported
    Method ATTACH_BY_(4) is not supported

Cause

Acronis Recovery for Microsoft Exchange does not support the following attachment backup and restore methods:

  • ATTACH_BY_REFERENCE ((ULONG) 0x00000002)
  • ATTACH_BY_REF_RESOLVE ((ULONG) 0x00000003)
  • ATTACH_BY_REF_ONLY ((ULONG) 0x00000004)

Solution

The next version of the software, Acronis Backup & Recovery 11.5 for Microsoft Exchange Server, supports these attachment methods. You can find more about the new product features in Acronis Backup & Recovery 11.5: New Features and Enhancements.

More information

See also Microsoft MSDN Article: PidTagAttachMethod Canonical Property.

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