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How can I enable Notification Delivery Logging?

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I would like to log the delivery of my notifications for troubleshooting purposes. Is there a function to achieve that?

logging notification-delivery notifications prtg reghack registry

Created on Jul 11, 2013 11:50:06 AM by  Gerald Schoch [Paessler Support]

Last change on May 20, 2019 7:46:19 AM by  Maike Behnsen [Paessler Support]



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This article applies to PRTG Network Monitor 19 or later

Notification Delivery Logging

Extended notification delivery logging can be helpful to troubleshoot issues with the delivery process. For this reason, we provide a registry key option. If you apply this registry hack, notification delivery logs are stored in your PRTG data directory.

Important: Notification delivery logging is only meant for troubleshooting purposes in case of delivery issues. Activate it only for this purpose. Deactivate it again after usage and manually delete the logfiles. Otherwise, you might encounter an error during the normal use of notifications: Error sending "xyz": Cannot open file "xyz\Notification Log(xyz)".

Note: Back up your system before manipulating the Windows registry!

Steps to Go

  1. Open the registry editor and navigate to the following keys:
    1. On a 64-bit Windows system, navigate to HKEY_LOCAL_MACHINE\Software\Wow6432Node\Paessler\PRTG Network Monitor\Server\Core
    2. On a 32-bit Windows version, navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Paessler\PRTG Network Monitor\Server\Core
  2. Create a new DWORD: In the current path, right-click and select New|DWORD Value, and name the new value LogNotificationDelivery.
  3. Set the value of LogNotificationDelivery to 1: Right-click on LogNotificationDelivery and select Modify…. In the value field, enter 1. Confirm with Ok.
  4. Restart your PRTG core server.
  5. Let PRTG run for a while, so that SMTP relay can take place more than once.
  6. The logfiles are generated with their timestamp as names in the following subfolders of the \Logs\debug subfolder of your PRTG data directory:
  • Notification Delivery Debug Log (MX Server)
  • Notification Delivery Debug Log (SMTP Relay 1)
  • Notification Delivery Debug Log (SMTP Relay 2)
  • Notification Delivery Debug Log (HTTP)
  • Notification Delivery Debug Log (SMS)
  • Notification Delivery Debug Log (Amazon SNS) (as of PRTG 15.4.21)

If you encounter issues with notification delivery, zip the logfiles and forward them to us.

Setting the value of the DWORD to 0 (or deleting it) disables notification delivery logging again. Delete the logfiles manually after successful troubleshooting.

Created on Jul 11, 2013 11:53:17 AM by  Gerald Schoch [Paessler Support]

Last change on Jul 25, 2019 5:02:30 AM by  Maike Behnsen [Paessler Support]



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Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.