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Understanding the Message Log

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The Message Log is a log of all inbound and outbound messages that are sent to and from your domain(s), regardless of whether they were delivered. Each time an attempt is made to send mail to or from your domain(s), it is recorded in the Message Log. For example, if a message sent to your domain is deferred, it appears in the Message Log as Not Delivered. If and when the sending server retries this message, a new entry appears in the Message Log. The original entry and delivery status in the message log does not change. A new entry appears each time. Therefore, there might be multiple entries/attempts to deliver the same email and each of these entries might have a different delivery status and different message ID.

The Message Log is not an inbox. It is a log of all entries. Therefore, messages cannot be deleted from the message log.

The Message Log is a window into how the current spam, virus, and policy settings are filtering email coming through the Barracuda Email Security Service. Use the information in the log to help tune your inbound and outbound policy settings.

Note that messages expire after 30 days. Initially the Reading pane is hidden by default, enabling you to quickly scan through messages.

If you make setting changes, allow a few minutes for the changes to take effect.

Sort messages using the Advanced Search feature to quickly view email by allowed, deferred, quarantined, encrypted (outbound), or blocked messages by domain, sender, recipient, time range (last 2- 30 days), envelope to, envelope from, reason, action taken (see Message Actions), date or subject. The Message Log reflects all email traffic through the Barracuda Email Security Service at the global level. If you click on a verified domain on the Domains > Domain Manager page, a tab for the Message Log for that domain displays. Additionally, you can track end-user quarantine notifications in the Message Log.

All messages going through the Barracuda Email Security Service are subject to a size limit of 300MB. This includes headers, body, and any attached content.

Filter the Message Log

When viewing the global Message Log, you can choose to view only Inbound or only Outbound mail using the Message Log Filter. You can filter on All, Allowed, UI Delivered, Email Continuity, Not Allowed, Blocked, Deferred, or Quarantined messages. For details on each of these actions, see Message Actions.

Note that if you have configured more than 10 domains, you cannot search on All Domains at one time; rather, you must select one domain at a time to search. For more information on filtering at the global level, click Help on the Overview > Message Log page.

The User Message Log is less comprehensive than the global, administrator's Message Log. For example, users cannot see outbound mail in their Message Log. For more information about viewing and filtering messages, click Help on the Message Log page at the global level or after logging into a User account.

Create Saved Searches

You can save a search so it is convenient to use in the future.

To create a saved search:

  1. Do one of the following:
    • Enter a search term in the Search box, then click Search.
    • Click Advanced Search, enter one or more search terms, then click Search.
  2. Click Saved Searches. In the blank space, type a name for your search, then click Save. Confirm you see the search you just created in the list.
  3. When you are ready to run a saved search, click Saved Searches, then click the name of that saved search.

To delete a saved search, in the Saved Search panel, click Remove.

Incorrectly Blocked or Incorrectly Delivered Messages

Occasionally the Barracuda Email Security Service might incorrectly identify a piece of mail as Spam (false positive) or Not Spam relative to the policies you have set. You can tune the Advanced Spam Detection Scoring levels on the Inbound Settings > Anti-spam Antivirus page by selecting Custom and adjusting the score for each category based on what type of mail you consider to be spam.

Occasionally, the Barracuda Email Security Service might incorrectly block or allow a message based on Barracuda settings. Reporting these messages helps improve spam detection. Use the following buttons on the Message Log page (both at the global level and the user account level) to mark a message and have it sent to Barracuda Central for analysis.

  • Report as Incorrectly Blocked – Message should have been delivered. This includes messages that are not spam.
  • Report as Incorrectly Delivered – Message should have been blocked. This includes spam messages.

Barracuda Forensics & Incident Response Users: Messages you mark as Incorrectly Delivered appear in the User-Reported Emails page, where they can be investigated and remediated if needed.

Deliver Messages to Recipient

You can click Deliver for one or more selected messages in the Message Log if you decide the message is valid.

  • If a message is successfully delivered, a new message entry appears in the Message Log with the Delivery Status of UI Delivered.
  • If a message cannot be delivered, you are notified by a message in your browser. A new message entry appears in the Message Log with the Delivery Status of Not Delivered.

If the Reason field for a blocked message displays as Advanced Threat Protection, you cannot immediately deliver the message. See Advanced Threat Protection Reports for details.

If delivered messages are not making it to the recipient's mailbox, it may be due to a filter on your mail server or a service on your network catching the mail as spam. Check your local trash/spam folder to locate the mail.

User's Message Log
Individual users have an additional option to remove selected messages from their personal Message Log. The user can select one or more messages, and click Delete.

Message Details

Click on a message in the table and its Action and Reason display below. Click Show Details in the message header to view additional information including IP address, recipients, and delivery status. The administrator (or user, when viewing their own account) can then elect to View the entire message and take actions on the message. The words Includes Other Recipients in the Message Details link indicate that the message was sent to multiple recipients or distribution lists. The individual addresses are listed in the message details.

If your Message Log shows an email message with a subject of Message has no content,  this is due to a failed connection. The Barracuda Email Security Service now logs all failed connections. The record for a failed connection shows the from/to data, but the log entry does not have any header or body content. As a consequence, mail that is malformed or is addressed to an invalid recipient displays in the logs with the Message has no content in the Subject line.

Message History

Each record in the message log represents a separate event. For example, if a message is not initially delivered, but is successfully delivered later, there are at least two events – one for the initial error and another for the delivery – and possibly additional events for retrying the delivery. It can be helpful to see all of the events related to a single record in one place.

The Show Message History button displays in the Reading pane. The Reading pane control is at the top of the Message Log. Select Right or Bottom to choose where you want the Reading pane to display.

To view all events associated with a single record:

  1. Select a record.
  2. In the Reading pane, click Show Message History.
    • The Message Log populates with all records related to the original record you selected.
    • If the record has no content, as described in the note above, Message has no content displays and Show Message History does not display.
    • If there are no related records, only the record that you selected appears in the Message Log.
  3. Optionally click Hide Message History to return to the Message Log.

Investigating and Remediating Emails

This feature is available if you are using both Barracuda Forensics & Incident Response and have at least one Office 365 account associated with Barracuda Essentials.

If you find a questionable email in the message log, you can move seamlessly from Barracuda Email Security Service to Barracuda Forensics & Incident Response to investigate it.

To find messages similar to the questionable email:

  1. Log into Barracuda Email Security Service as an administrator.
  2. In the Message Log, find the questionable email and click it to view its details.
  3. Click Search for similar messages. The Barracuda Forensics & Incident Response wizard opens in a new browser tab.
  4. Continue with the wizard, as described in Using the Barracuda Forensics & Incident Response Wizard. Note that the fields in the wizard are pre-populated with the information from the email in the message log.

With Barracuda Forensics & Incident Response, you can find similar emails, then if needed, take action to remediate any issues, including removing emails from users' mailboxes and creating policies to block senders. Refer to Barracuda Forensics & Incident Response Overview for details.

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