Last date modified: 2026-Apr-02

Email thread visualization

The email thread visualization tool is available for any email threading jobs run as full builds. When the job completes, the visualization is available from the document Viewer when you open a document.

Email thread visualization can improve efficiency as follows:

  • Quickly see the story of an email conversation—instantly see where the conversation branched and where drafts or attachments appear as the conversation progressed.
  • Optimize your QC process—use the visualization as part of your QC process. Coding highlights can be used to highlight any Yes/No and single choice field in the email thread visualization pane. In this way, you can see how a whole thread is coded with privilege or responsiveness. If discrepancies exist, you can use the visualization to correct them through mass editing.

See these related pages:

Requirements for email thread visualization

To use email thread visualization:

  • The Analytics application must be installed in the workspace.
  • The documents must have the Email Author Date ID field. To generate this, run email threading on the documents. For instructions, see Running structured analytics.

Security permissions

Email thread visualization requires the following permissions:

Object Security Admin Operations
  • Color Map - View or higher
  • Structured Analytics Set - View or higher
  • Structured Analytics Results - View or higher
  • Email Thread Visualization

You must also have View permissions to the following fields:

  • Email Action
  • Email Thread Group
  • Email Author Date ID
  • Inclusive Email
  • Email Thread Hash
  • Email Duplicate Spare
  • Email Threading Display
Feature Permissions provide an alternative to Relativity's security management by shifting the focus from Object Types and Tab Visibility to feature-based permissions. This method is simply another option; any feature-specific permissions information already in this and other topics is still applicable. The Feature Permissions interface enables administrators to manage permissions at the feature level, offering a more intuitive experience. By viewing granular permissions associated with each feature, administrators can ensure comprehensive control, ultimately reducing complexity and minimizing errors. For details see Instance-level permissions and Workspace-level permissions.

Launching the email thread visualization tool

Email thread visualization is available from the document Viewer for all document types.

To launch the email thread visualization pane, click the Email Thread Visualization icon in the lower left corner of the displayed document in the Viewer. The pane expands and shows the thread group for the selected email in the Viewer.

Email threading visualization icon

When you click the Email Thread Visualization icon, the email thread visualization pane expands to show the email thread group of the currently opened document. From the visualization, the currently opened document is outlined in orange and appears larger than the unselected documents in the thread. If the current document is an attachment or duplicate spare, the parent that holds that attachment or duplicate spare will be outlined in gray.

If you are working with multiple email threading sets, check that you have the correct one selected by clicking the Select Structured Analytics Set icon in the top right of the pane. For more information, see Selecting a different structured analytics set.

Email thread visualization tool

When you navigate to other documents in the Viewer, the email thread visualization pane persists in its current state. Once opened, the pane remains open for documents which have also run through email threading. If you navigate to new email thread groups, the pane updates to reflect the current group. Navigating to any documents that have not been run through email threading closes the visualization pane.

Common icons and navigation

The visualization pane shows email threads from left to right, with the earliest emails in the thread group appearing on the left. Emails with Forward and Reply actions branch downward before a Reply All action. Email actions are illustrated with arrow icons in the lower left corner of the email icon. For more information on how email actions are shown, see Email Threading Display.

Loading documents from the visualization pane

Clicking on an email icon opens the parent email in the Viewer. If you hover over an email icon, a tooltip window displays with information about who the email is from, the sent date, and any attachments or duplicate spares. You can click on the attachment name or the name of the duplicate spare to open it in the Viewer. For more information, see Using the email icon hover tooltip.

If you navigate to a document within the current document list review queue (meaning, the set of documents that you have opened in the Viewer), then the document opens without refreshing the Viewer screen. If you navigate to an email that is outside of the current document list review queue (such as if you filtered the document list or opened the Viewer from search results), then a new review queue containing only the documents within the selected document's email thread group displays. From the new email thread group review queue, you can only navigate to emails within the same thread group. Click Return to review queue at the top left of the Viewer to return to your original document list review queue.

The following basic navigation icons are displayed in the email thread visualization pane:

Icon Feature Description
Enable Mass Edit Selection icon Enable Mass Edit Selection Click this button to enable selecting documents in the visual email thread, along with their duplicate spares or attachments. You can then mass edit the selected documents. See Mass editing using email thread visualization.
Zoom out and Zoom in controls Zoom Out and Zoom In controls Click the plus or minus sign to zoom in or zoom out in your email thread visualization. See Using zoom controls.
Reset Zoom icon Reset Zoom Click this icon to reset the zoom to its default state. See Using zoom controls.
Collapse legend icon

Collapse Legend / display option controls

Click this icon to collapse the legend and display options for the email thread visualization pane. See Using the legend.
Expand legend icon

Expand Legend / display option controls

Click this icon to expand the legend and display options for the email thread visualization pane. See Using the legend.
Select structured analytics set icon Select Structured Analytics Set Click this icon to select a different email threading structured analytics set.

Email type icons

Different email types are represented with the following icons:

Icon Email Type Description
Inclusive email icon Inclusive Emails that are inclusive, non-duplicate spares are represented by black email icons.
Not Inclusive email icon Not Inclusive Emails that are not inclusive are represented by white email icons.
Duplicate Spare icon / Duplicate non-spare icon Duplicate Spare and Other

An email that has duplicate spares or non-duplicate spare emails that exist at the same location in a thread contain a double stacked email icon. These non-duplicate spare emails are grouped within an "Other Emails" section in the tooltip. The following scenarios are the most common causes of these emails not being marked as duplicate spares:

  • Inserted confidentiality footer
  • Processing differences in body text
  • Different attachments
Missing email icon Missing

Missing emails, some secured emails, and a few other cases are represented by a question mark icon.

  • Missing email icons may not represent truly missing emails. Missing email icons are used when a previous segment has changed as the thread progresses. Because the original segment is not found, the Analytics Engine believes there is a missing email and represents this in the visualization.
  • If an email in the middle of a thread is secured, it is represented with the missing email icon. If a secured email is the last email in the thread, then it is not shown in the visualization at all.
  • If a secured email has an attachment or duplicate spare that is not secured, the email is represented as missing with the attachment or duplicate spare of that missing email shown.
Inserted confidentiality footers are a common cause of emails being marked as missing, because they change a previous thread segment. You can mitigate this by running email threading with a regular expression filter.

Message and file type icons

The Email Threading Display field includes the following file type icons:

Icon File Type Description
Not Inclusive email icon Send (or Other) The start of an email thread. This is represented by a simple indentation square.
Reply email icon Reply The original file name begins with RE:. This is represented by an indentation square with a single left arrow.
Reply All email icon Reply All A reply to all recipients. This is represented by an indentation square with a double left arrow.
Forward email icon

Forward

The original file name begins with FW:. This is represented by an indentation square with a single right arrow.
Draft email icon Draft The email is a draft and not sent. This is represented by a pencil on the left of the square indentation square.
Single attachment icon Email contains one attachment The file is an email containing a single attachment. This is represented by an indentation square with a single paper icon on the right.
Multiple attachment icon Email contains multiple attachments The file is an email containing multiple attachments. This is represented by an indentation square with a double paper icon on the right.

Attachments are documents included in your emails in the document set saved search.

When emails contain attachments:

  • The document type determines the attachment's file type icon.
  • The attachment’s file name that appears is based on the value in the attachment name field.

Using zoom controls

The visualization first renders in a best zoom state, respecting the particular email thread group size being rendered. You can zoom the visualization further in or out by using the Zoom In and Zoom Out controls in the header as well as by using your mouse's scroll button. Click the Reset Zoom circular arrow to restore the default zoom state.

Using the legend

When you view the email thread visualization for the first time during a session, a legend appears showing the meaning behind the different icons. You can collapse the legend if you want to see more of the visualization. If you collapse the legend, it will stay collapsed until you log out of Relativity.

Email threading legend

The legend also contains a key to any coding highlights, as well as other display options that can be turned on or off. See Using coding highlighting.

Using the email icon hover tooltip

If you hover over an email icon, a tooltip displays information about who the email is from, the sent date, and any attachments or duplicate spares. You can click on an attachment name or the name of a duplicate spare to open it in the Viewer.

Sent Date and Email From fields are typically mapped for email threads when you run Structured Analytics email threading on documents. If you do not map these fields in your Structured Analytics profile, or if you do not use them in your workspace, the tooltip will use the derived values from the Analytics engine instead.

Email icon tooltip window

If there are multiple attachments or duplicate spares, you can click on the link displaying the number of documents to display a slideout window of the actual list.

The tooltip window will not display for you after clicking the Enable Mass Edit Selection icon and switching to selection mode.

Selecting a different structured analytics set

When you view a thread in the email thread visualization pane, you can choose to see results from any other email threading structured analytics sets. You can use this to view differences between sets that used different settings or saved searches.

To switch to viewing the thread in a different structured analytics set:

  1. Click the Select Structured Analytics Set icon.
    Select Structured Analytics Set icon
  2. Select a structured analytics set from the drop-down menu.
    The visualization pane updates to show the other set's results.
  • To see a set in the drop-down menu, you must have security permissions for all necessary results fields for the set.
  • If a displayed email thread is not in the selected structured analytics set, then the visualization pane displays a notification that the current document is not in the selected set.

Mass editing using email thread visualization

The email thread visualization tool can be used to code entire branches of emails quickly and visually. You can mass edit from thread group related items pane or the visualization, and changes are reflected in real time.

To mass edit emails in a displayed thread:

  1. Click the Enable Mass Edit Selection icon to go from navigation to selection mode.
    The Edit and Cancel buttons appear. If you do not want to perform a mass edit, click Cancel to return to navigation mode.
  2. While in selection mode, click on the emails you want to edit. This selects them for mass editing, including any parent or child attachments or duplicate spares that the icon represents. A green circle showing the number of items selected appears in the top right corner of the icon.
    • The Edit button displays the total number of emails, attachments, and duplicate spares currently selected across the whole thread group.
    • To select an entire branch of a thread, hold down the SHIFT key and click the first email in the branch, then the last email in the branch.
    Location of Edit button when viewing a thread group
  3. Click the Edit button to launch the mass edit modal.
    The mass edit modal displays options for coding the documents.
  4. Make your coding changes for the selected emails, and then click Done.

The email thread visualization refreshes with the coding changes and restores the pane to navigation mode upon completion.

Using coding highlighting

Use coding highlighting to see how emails in the current thread are coded for a particular yes/no or single-choice field. The visual highlighting makes it easier to spot discrepancies, investigate coding mistakes, and make corrections. Coding for the selected field is reflected in real time.

To use coding highlighting:

  1. Click to open the Display Options section of the legend, and then click on the Highlight Field switch to enable coding highlighting.
    Highlight Field option
    This enables the drop-down Coding Highlight field. To disable coding highlighting, click the switch again.
  2. Select the field you want to highlight in the email thread visualization pane from the drop-down Coding Highlight field, such as Confidential Designation.
    The emails in the thread are now highlighted with different colors corresponding to the available choices for the field.
    Email threading with coding highlights

The Legend displays the choices associated with the selected field for the displayed email thread and assigns each choice a color. Coding highlighting for this field will remain as you navigate the email thread. Navigating to other email thread groups with the Coding Highlight enabled will update the legend with the choices coded for the new thread.

Coding highlighting considerations

When you use coding highlighting:

  • You can hover over any email to view highlighted coding for duplicate spares or any attachments. For more information, see Using the email icon hover tooltip. Any email where the coding highlighting for its duplicate spares or attachments does not match displays a red exclamation point icon in the top left corner.
    Email icon with red exclamation point
  • Email thread visualization always shows the coding highlight for the primary document.
  • Colors chosen for the highlighted field choices are assigned automatically. When a field choice is highlighted for the first time, a color is associated with that choice and will remain associated with that choice as you view coding highlight for other email thread groups. If you want to change the color that is associated with a choice, see Changing the color associated with a coding choice.

Changing the color associated with a coding choice

Colors are assigned as a field and its choices are being visualized in the Email Thread Visualization. The choices visualized are assigned colors in the order shown in the table below. As new choices on that same field are visualized, they are assigned the next color in the order shown.

Order

Background Color

Foreground Color

1

Color swatch 1 #3f79f9

#434548 (default)

2

Color swatch 2  #f8d353

#434548 (default)

3

Color swatch 3  #c14c89

#434548 (default)

4

Color swatch 4  #54cd93

#434548 (default)

5

Color swatch 5  #ff6363

#434548 (default)

6

Color swatch 6  #43bdd6

#434548 (default)

7

Color swatch 7  #faa85d

#434548 (default)

8

Color swatch 8  #6b51b4

#434548 (default)

9

Color swatch 9  #9dbd5b

#434548 (default)

10

Color swatch 10  #ffa7b2

#434548 (default)

As a Relativity system admin, you can update the colors that are assigned to specific coding field values.

To update the color mapped to a choice:

  1. Unlock the Relativity Color Map application. See Locking and unlocking applications.
  2. Unhide the Color Map tab from the application console by clicking Edit next to the tab, then selecting the Visible flag.
  3. Navigate to the Color Map tab. A list of Yes/No and single choice fields and their field values appears.
  4. Select the choice that you want to update – Field Value is set to the ArtifactID of the choice.
  5. Edit the Background Color for the selected choice using the Edit mass operations.
    • Use the table above to enter values for the Background Color, such as #43bdd6.
    • See Mass edit for more information on how to use the Edit mass operation.
  6. Re-hide the Color Map tab (optional), then re-lock the Color Map application.
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