Message tracking

This area displays detailed information about the processing of emails. You can see which emails were blocked or let through, as well as trace the procedure of NoSpamProxy®and the functioning of the rules.

TIP: The NoSpamProxy Web App offers additional search options for message tracking. See Message tracking (Web App).

Message Tracking in NoSpamProxy

Enabling message tracking

  1. Go to Configuration > Advanced settings > Monitoring.
  2. Click Modify.
    Adjusting the retention periods
  3. On the Message tracking tab, select the Gather message tracks option.
  4. Configure the following options:
    • Store summaries The period of time for which you can trace emails. The message summary information only allows you to see in the message tracking overview whether and when the email you are looking for has arrived and whether it has been accepted or rejected.
    • Store details The retention time for the associated message details. In the details you will find the ratings of each filter, information about the origin of the email and the duration of the analysis, as well as other useful information. Since this information makes up the majority of message tracking, it is possible to keep it for a shorter period of time than the summary information.
    • URL Safeguard The period of time for which the visits of the targets of URLs are stored.
    • Store statistics The period for which you can create reports. To be able to create a meaningful report, we recommend a minimum retention period of 12 months. 
  5. On the Emails on hold tab, configure the retention period for emails that are waiting for an encryption key.
    Adjusting the retention period for emails on hold
  6. Click Save and close.

Filtering search results

You can use the following search criteria individually or in combination to filter the results.

Dispatch period By selecting under Periods, frequently required searches can be selected quickly.

NOTE: A time period must be specified in any case. By default, the start time is set to the current system time - 1 hour and the end time is set to the current day at 23:59.

  • Sender and recipient address The email addresses of the communication partners. It can be filtered for local and external addresses. The search can be performed for exact hits or for components of addresses. The search for exact hits is much faster.
  • Subject The content of the subject line.
  • Message ID The internal identifier of the email.
  • Delivery results The status of the delivery.
  • SCL value The calculated spam confidence level.
  • Rule The name of the rule by which the message was processed.

TIP: When entering text, you can always enter the entire text to be searched for or just parts of it.

The search results are sorted by date in ascending order.

View details on processing an email

The details contain information on the delivery status as well as the signing or encryption of an email.

  1. Right-click the record whose details you want to view.
  2. Click on Details.


  • Double-click the record.

Message tracking details

Here you can view all editing steps and details available for the corresponding record from start to close the connection, among others:

  • Connection encryption
  • Certificates used by the SMTP server or SMTP client
  • Filter results
  • General processing errors of NoSpamProxy
  • The Validation tab shows, among other things, details about the validation of the email, the calculation of the Spam Confidence Level for the Level of Trust assessment, and the filters and actions performed on the email.
  • The URL Safeguard tab contains information about URLs that have been modified by URL Safeguard.

Exporting or importing records

You can save the message tracking records as a CSV file on your local hard drive or view saved records in full detail. This function is useful if you need assistance in analysing a data set.

  • To export, click Export all message tracks in the lower left corner of the details dialog.
  • To view, click Load message track file in the list of all records found.

Report misclassification

If emails have been incorrectly assessed as safe or malicious, you can report them to our cloud-based NoSpamProxy services.

Proceed as follows:

  • Click Report misclassification below the detail dialog.

The reported misclassifications are used to improve detection by 32Guards and by the Core Antispam Engine.


NOTE: Please consider the data protection regulations existing in your company when configuring this section.

NOTE: In order not to let the database size of the message tracking and reports grow uncontrolled, the Intranet Role cleans up the database on a regular basis. All elements that have exceeded a specified age are deleted from the database.

NOTE: If you want to discard all message tracking records and statistical data, please select the option Disable message tracking completely under the Advanced Settings of the Gateway Role. In this case no data will be collected. For example, if you only want to record statistical data, select the option Message tracking records are deleted immediately to delete all message tracking records at 2 a.m.

NOTE: If you receive several tens of thousands of emails or spam emails per day, the database size limit may be exceeded with an Express Edition SQL Server. With so many emails, shorter retention periods of message tracking records should be chosen or a SQL Server database should be installed without this limitation.