41692: Acronis Backup 11.7/11.5: Backup of Databases or Mailboxes or Browsing of Mailboxes Fails with "MAPI IMsgStore has not been retrieved from IMAPISession. HRESULT: -2147221219"

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Backup of databases or mailboxes or browsing of mailboxes fails with "MAPI IMsgstore has not been retrieved from IMAPIsession. HRESULT: -2147221219". To fix this issue, install the MS update rollup.


  1. You are using Microsoft Exchange Server 2010 (Standard or Enterprise) with Service Pack 1
  2. You attempt one of the following operations:
    • Backup of information store (database);
    • Backup of mailboxes;
    • Browsing up to folders of mailboxes in the Data to Back up window.
  3. The operation fails with the following error message:

Error code: 209
Module: 91
LineInfo: c91a7cfd9570a2f6
Fields: $module : arx_agent_fork_vs_32308
Message: MAPI IMsgStore has not been retrieved from IMAPISession. HRESULT: -2147221219.


This is a known issue in Microsoft Exchange 2010 Service Pack 1.


To solve this issue, please download and install the following:

See also Microsoft Knowledge Base: "MAPI_E_FAILONEPROVIDER (0x8004011D)" error message when you access an Exchange Server 2010 mailbox by using a MAPI application