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Quarweb Logs Error: 'Error[P21]' When an Item Failed to Be Approved and Whitelisted from the GFI MailEssentials Quarantine

Author: Luis Fernandes Updated

Overview

An item failed to be approved and to be whitelisted with one of the following errors:

You will see this following error in the QuarWeb logs:

QuarWeb.log(8714): 2013-03-12,13:19:13,679,1,"#00001D5C","#00000018","error ","QuarWeb","ERROR[P21]: Item <BD9CAF2E-7C93-49E9-97CD-0DEEE3CB42A9> failed to be approved and whitelisted"

You may also see this error:

QuarWeb","ERROR[P12]: System.ArgumentException: The (&(objectclass=User)(|(objectSid=))) search filter is invalid.

Environment

  • GFI MailEssentials
  • All supported environments

Root Cause

The dynamic-link library cdosys.dll is not registered. Hence, this will cause lookups to the MailEssentials\Antispam\config.mdb to fail.

Resolution

To resolve the error and register the DLL, follow the steps below:

  1. Open an administrative command prompt. Choose Start > Run. Type cmd and press Ctrl + Shift + Enter.
  2. Type one of the following commands and press Enter:
    • 32 bit: regsvr32 "C:\Windows\System32\cdosys.dll"
    • 64 bit: regsvr32 "C:\Windows\SysWOW64\cdosys.dll"