Tips To Fix Exchange Server Error – 0x8004011B

17 Jul
"Task 'Microsoft Exchange Server' reported error (0x8004011B) : 'Unknown error 0x8004011B"

“Task ‘Microsoft Exchange Server’ reported error (0x8004011B) : ‘Unknown error 0x8004011B”

The Database files in MS Exchange Server are used to keep all the communication and personal data of the users in an organization. Sometimes, when these database files stop to respond, all users become unable to access their important business emails and other data. If Exchange server database file has been damaged due to any reason, it may flash an error message on your attempt of sending and receiving an email. One of the error messages that you may receive in case of corruption in Exchange databases can be as below:

“Task ‘Microsoft Exchange Server’ reported error (0x8004011B) : ‘Unknown error 0x8004011B” 

Below are some of the prominent reasons behind the occurrence of the above error message:

  • The antivirus software is blocking the connection between Outlook and the Exchange server.
  • The firewall is blocking the connection between Outlook and the Exchange server.
  • Your Outlook profile has got corrupted.
  • Outlook 2003 is installed on Exchange 2003 Server or domain controller.
  • The Exchange Server database has been corrupted (Usually occurs, when an anti-virus software scans Exchange database directly).

Anti-virus software are meant to secure our system from malicious viruses and malware. If installed in the system, these software make a protecting cover on the data in the system and check every incoming as well as outgoing data. Anti-virus software scan files, folders, URLs, links, other data blocks etc and remove the untrusted elements, if found. But, sometimes these useful utilities remove important entries of the Exchange database, resulting in the loss or inaccessibility of precious data in it.

Below is the possible resolution that may recover the data from the damaged Exchange Server database:

  • Disable all antivirus software both from client and server side.
  • Cross check the antivirus in use is compatible to Exchange 2003 and Outlook 2003.
  • If Outlook and Exchange server are separated using any firewall, configure and map the static port appropriately.
  • Run Eseutil and Isinteg utilities to check the Exchange Server database.
  • Delete the old outlook profile and create a new one.
  • If the Outlook 2003 is installed on Exchange server or domain controller, then change the security settings of the “log on network security” to “Kerberos

If after performing all these steps, the Exchange Server database is still inaccessible, you need to opt for a third-party Exchange Recovery software. These software come with powerful database repair algorithm, which recover the Exchange database under any instance of corruption. Importantly, these utilities are as safe as any other inbuilt Microsoft utility and recover your precious data, without even any change or modification.


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