NetDocuments ndMail is the matter-based intelligent email management application — a game changer — with full cloud architecture built on the NetDocuments Trusted Cloud Platform integrated within Outlook.

NetDocuments in combination with ndMail provides key activities for busy law professionals, for filing emails and documents into a unified, matter-based solution.

Product Information and Announcements

Admin Topics

User Topics

Attention: To use ndMail, it requires that Microsoft Exchange and ndOffice already set up and functioning in your office by an administrator. If you are an administrator, go to the ndMail Administration topic for administrative requirements and best practices in setting up, configuration, and distributing ndMail to each client endpoint.

The following information is intended for end users.

User Requirements, Download, and Setup

Setup prerequisites:

  • Microsoft Windows 10 and 7 (64-bit)
  • Microsoft Office Outlook 2013, 2016 (32-bit or 64-bit), including Microsoft Office 365 subscriptions
  • ndOffice application, version 2.2 and above
  • Microsoft Exchange 2010 SP3, 2013, 2016, Online (Office 365)

Download for the client:

In most situations, ndMail is downloaded and installed by an administrator. If you need to install it, download the software:


Install ndMail on the client:

  1. Before installing, repairing, or uninstalling the ndMail application, you need to close Outlook.
  2. Ensure the account has administrative rights before installation.
  3. Obtain the ndMail Install from your administrator.
  4. Double-click the ndMailSetup.exe, then select Next.
  5. When the NetDocuments Terms of Use dialog box appears, read the license agreement, select that you accept the terms, and select Install.
  6. In the Completed the NetDocuments ndMail Setup Wizard dialog box, select Finish.

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Three Tips to Use ndMail

Once either you or your administrator has set up ndMail, ndMail helps you quickly file emails to proper locations in NetDocuments.

For more topics using ndMail, go to How to Use ndMail.

Tip 1: File an Email to NetDocuments 

Once ndMail is installed, it automatically generates a list of predictive filing locations to save your email.

To File an Email to NetDocuments: 

  1. Select a location using the checkbox next to the path location name (you can choose more than one).
    • If you do not see your desired filing location in the predictions, use the Cabinet pull-down to select a different cabinet and ensure you are looking in the correct Cabinet.
    • Use the Search box or Browse button to find it. Do not worry, predictions improve the more you use ndMail.
    • If you want to make the email private, only accessible to you, in NetDocuments, select the Access button > Just You. Even people who have access to that filing location cannot see the email.
  2. Select File.

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Tip 2: File and Move an Email to NetDocuments

Filing your sent items is as important as filing what you receive.

To File and Move an Email to NetDocuments:

  1. When composing a message, select a filing location before sending. If needed, select Refresh to get updated results based on the details of your message.
    • If you do not see your desired filing location in the predictions, use the Cabinet pull-down to select a different cabinet and ensure you are looking in the correct Cabinet.
    • Use the Search box or Browse button to find it. Do not worry, predictions improve the more you use ndMail.
    • Privacy - If you want to limit access, select Access.
  2. Select the pull-down and select File and Move.


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Tip 3: Link Outlook Folders to NetDocuments

If you prefer to save emails using your existing email folders, ndMail lets you do that as well. After linking a folder, any email you move to that folder will automatically be saved to NetDocuments.

To link Outlook Folders to NetDocuments:

  1. Right-click any Outlook folder and select Map Folder to ND.
  2. Use the Browse button to browse to your desired filing location in NetDocuments. Ensure to complete any required profile fields marked in redThen, select OK
  3. Copy pre-existing emails too is selected by default. If you want to file emails that are already in the folder to NetDocuments, leave selected. Otherwise, clear the checkbox.
  4. Select Link to finish. ndMail adds "(nd)" to the end of the folder name to show it is linked (including mobile devices).

Pro tip: If you want to link subfolders (that are not already mapped to NetDocuments) to the same filing location as the one you are currently setting, select Link (unmapped) subfolders too.

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ndMail Interface Overview and Navigation

Table of Contents


NetDocuments is the document and email management in the cloud. With ndMail integrated into Microsoft Outlook, leverage web-scale predictive technologies to file email messages to the correct location seamlessly. For each email, NetDocuments analyzes its content, recipients, attachments, and so on, to predict a set of filing locations where others have previously filed other similar email messages at your organization or on your team. The diagram shows the main ndMail user workflow.

The ndMail User Workflow



ndMail provides an intelligent, firm-wide predictive filing based on key criteria such as To, From, Cc, subject, contents, attachment names, and so on.

Predicted locations are visually ranked, indicating the prediction accuracy to file the email to the best location based on similar emails and documents in your NetDocuments repository.

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The ndMail Predictions Panel Overview

After installing ndMail and launching Microsoft Outlook, the ndMail predictions panel appears. Also, collapse and expand and move and resize the ndMail predictions panel. 

The ndMail Predictions Panel

1 Relevancy rank. See the prediction accuracy for the predicted locations.
2 Rename. Rename an item subject before filing.
3 Access. Edit an access to the item you want to file.
4 Refresh. Click to manually refresh the predicted filing locations.
5 Search. Search for more locations to file an item.
6 Settings. Specify ndMail settings to file an item.
Note: This option is available with 1.1 release.
7 Browse. Select other locations for filing. The newly-selected location remains at the top of other predictions on the panel.
8 Collapse/expand chevron icon. Show or hide the predictions panel.
9 The Cabinet drop-down. Select the cabinet where you want to file an item.
10 File vs File&Move. Automatically move the filed item to the selected folder when filing.
Note: The File&Move option is available with 1.1 release.

To view the diagram that illustrates how ndMail predictions panel works, see ndMail diagram.

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Primary Strategies for Generating ndMail Filing Predictions

The Locations to which Emails participating in a Conversation are Filed

When generating predictions for a particular email, ndMail will identify other emails that have been filed which are participants in the conversation thread. ndMail will offer the locations of those emails as recommended filing locations.

The locations to which emails exchanged with a particular user are filed by any user in a cabinet

When an email is filed, ndMail identifies the email address with whom the filing user is interacting and manages a history of where emails related to the opposite party are filed. ndMail will then generate recommendations based on the cabinet users' collective filing history, which will suggest locations based on where emails exchanged with a particular email address have been recently filed.

The locations to which emails are filed for the filing user

When an email is filed, ndMail will manage each user's individual filing history. ndMail will make recommendations based on where a user has recently filed emails.

The locations in which similar documents to the current email are filed

ndMail will make recommendations by looking for filing locations with emails similar to the email for which predictions are being generated. Sender, recipients, attachment names, and subject are taken into consideration when generating predictions.

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ndMail Settings

With 1.1 release, there is a new Settings   button in the upper-right corner of the ndMail predictions panel. After selecting it, the ndMail Settings dialog box opens.


The following options are available:

  • Select Folder to set up File & Move. When filing, automatically move the filed item to the selected folder. For this, choose the Select folder link, and in the Select Folder dialog box, select the desired location. On the ndMail Predictions Panel, find the File and File & Move
  • pull-down options. The File button
  • File & Move button automatically moves the filed item out of the current folder and into the selected location.
  • Prompt to file outgoing messages. Select this checkbox to see a prompt for selecting the location when sending an item. The prompt only displays the first time the user clicks Send and shows up as a red line around the filing panel which blinks three times. After this first prompt, the user can still send the item without filing, if needed, by selecting Send again. 
    Note: See the additional registry settings to continually prompt them (i.e. force them to file on send)
  • Enable one-click filing. After selecting a filing location, the current message will be filed automatically when the next message is selected.
  • Show relevancy rank for predictions. Select this check box to see the relevancy ranking for predictions on the Main and Inspector views of different Outlook items. Relevancy rank tooltip indicates the recent location. Note that in an effort to optimize space, the default in 1.1 is to not show the relevancy rankings.

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Relevancy Rank

Next to filing locations, you can see the real prediction accuracy percentage for the location and have visibility on its relevance and make a proper decision on selecting the filing location.

  • No lines colored – 0 percent and disabled ranking and also manually-added locations from the Select filing location dialog box or by using the quick search
  • One line – 1-19 percent relevancy
  • Two lines colored – 20-39 percent relevancy
  • Three lines colored – 40-59 percent relevancy
  • Four lines – 60-79 percent relevancy
  • Five lines ->=80 percent relevancy

Note: With 1.1 release, you can see the "Rank: 0 (Recently used location)" tooltip, in case prediction returned from the server has "0" relevancy rank.

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The Cabinet Drop-down

From the Cabinet drop-down menu, select the cabinet to file an item. This cabinet remains selected for the next items to file until you select a new one from the Cabinet drop-down menu. The filing is performed only per selected cabinet.

If you select a location in a particular cabinet but decide to navigate to another cabinet, then the selected location in the previous cabinet is lost.

If there are no cabinets available, the following message appears: "The server cannot display filing locations without an active repository. Please contact your administrator."

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Global Filing Indicator

The global (firm-wide) filing indicator shows filed items in your mailbox you or someone else at your organization filed.

Global filing indicator 


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Collapse or Expand the ndMail Predictions Panel

Either collapse or expand the ndMail predictions panel by selecting the  icon. Also, set the appropriate value in HKCU hive. Learn More

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ndMail Folder Mapping

ndMail folder mapping creates links between Outlook and NetDocuments folders. Any emails filed into a linked Outlook folder is automatically profiled to NetDocuments correctly, which means that you can leverage existing Outlook folders without changing the way you work. 

On the Microsoft Outlook ribbon, you can see the ndMail tab.



Pause and Start

If syncing pauses, the existing items and the items you have moved to this Outlook folder will be added to the queue and will not be uploaded to the NetDocuments Web Interface. Upon selecting Start, syncing will be started and all items will be uploaded to the NetDocuments Web Interface.

ndMail Monitor List

After selecting the ndMail Monitor List button, the Link to NetDocuments dialog box opens.

The following options are available: 

  • Edit - Click to change the Outlook folder to NetDocuments folder linking. Upon selecting this option, the Link Folder to NetDocuments dialog box opens. You can either unlink the corresponding folder, re-sync it, or edit the previously specified settings by selecting the ellipses button. Note: Select the ellipses button, to open the Select location in NetDocuments dialog box, where you can edit the needed location for folder mapping.
  • Unlink - Select to unlink the Outlook folder. Emails from this folder will no longer be automatically copied to NetDocuments.
  • Re-Sync - Select to start copying items to NetDocuments from this folder. Two options are available:
    • Only emails that have not been copied previously
    • All emails (even if they were copied previously)
  • Failed Emails - Click this link to view error emails. You can find the information on the error itself, email address, subject, delivery date, and folder path in Outlook.

Note: Right-click the needed folder, and then select Edit/Remove ND Folder Mapping to open the same Link to NetDocuments dialog box.


Select More to get to the following options.



In the Settings dialog box, you can see two tabs: General Setting and Advanced.

After selecting the General Setting tab, you can select the following options:

  • Add category "filed to ND" once the item has successfully been uploaded to NetDocuments.
  • Display notifications balloon (for errors) in system Tray
  • Add/Remove (nd) or customized tag to the end of names of folders linked/unlinked to NetDocuments

After selecting the Advanced tab, you can select the following options:

  • Show "ndMail folder Mapping" Folder. The folder where ndMail Folder Mapping stores its settings is currently hidden. You can click this button to show the folder.
  • Enable troubleshooting logging - Select this check box to record the troubleshooting logs which you can view by clicking the View Log Folder button.
  • Clear Main Queue - Clear the items that are queued for copying to NetDocuments.
  • Clear Error List - Clear the error list that has been generated when copying emails to NetDocuments.


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Notification Settings

After ndMail files an item successfully, a system notification appears at the far right of the taskbar. Also, view warning messages about errors that might have occurred during the document upload or download.

After ndMail files an item successfully to a selected location, the following notification message appears. This message appears for 6 seconds. To view the filed item on the NetDocuments web interface, select View in ND.


If ndMail does not file an item successfully, the following notification message appears for 25 seconds.


If this message appears, check if you:

  • Are filing an item to the correct ndMail configured cabinet
  • Have properly configured the Exchange Web Service
  • Are filing Exchange account emails

Otherwise, contact your administrator, if the problem persists. Learn more to Customize Notification Settings.

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How to Use ndMail

User Topics

Rename a Subject before Filing an Email

Rename the subject before filing an item. 

To rename an item subject before filing an item

  1. Select an item to file, and then, in the ndMail predictions panel, select Rename.
  2. In the edit field that appears, type the name for the selected item, and then select Apply. You can enter up to 200 characters in the edit field.
  3. To file the item to the needed location, select File.
  4. To revert changes, press ESC.
  5. To cancel renaming, press ESC twice, or press ESC, and then select Apply to close the edit mode.
    Note: These characters are not supported for renaming: "/\:*?""<>| "

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Access to a Filed Item

Edit access to the item you want to file. The following options are available:

  • Just Me – Only you can access the filed item. For an email filed with the Just Me option, after selecting Refresh, by default, this file is selected for the next filing.
  • Default – Inherit access from the selected location. This setting is always selected for each next email to file.

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Refresh an Item

An automatic refresh occurs after entering or changing the subject for a new email, adding recipients to To and Cc fields, or adding attachments. The automatic refresh also works after closing a new item or a meeting response.

Note: On automatic refresh, changes are not lost, except changing a recipient in the Bcc field, as Bcc recipients are not factored into predictions or access.

On the ndMail predictions panel, select Refresh to manually refresh the predicted filing locations. After selecting Refresh, a notification message appears informing that the selected location, subject renaming, or the modified access reverts to default values.

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Search to Find an Item

Search for the created filters, folders, and workspaces with keywords to find a location where you want to file a message, even if it is not shown on predictions panel by default. To delete the entered value, you can press ESC.

Note: Enter up to 200 characters in the search field.

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Browse to a Filing Location

  1. From the Cabinet drop-down menu, select the needed cabinet, which you can access.
  2. Select Browse.
  3. In the Select filing location dialog box, navigate to the needed folder > Select

    The Select Filing Location Dialog Box

  4. Search for a filing location by:
    • Location Name
    • Location ID
    • Created By
    • Modified By
    • Everything
  5. (optional) In the Select filing location dialog box, to create a new folder, select Add Folder or to find a workspace select Go to Workspace > Select.
  6. After filing an item, the predicted filing locations appears for the next item. Find the recent filing locations in the predictions panel for a new message so that you can later file this message to the needed location.

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File an Email to NetDocuments

To file an existing item, select a location and select the File button. To save time, you can file multiple items at the same time to the same selected locations. You can file together with any items: emails, meetings, receipts (read, delivered), and meeting responses (accepted, declined, tentative).

Note: File up to 25 items at once.

To view the needed location on the NetDocuments web interface, right-click the selected location, and then select Go to location in ND. Also, select View in ND on the notification message that appears after you have successfully filed an item.


With 1.1 release, you can also view the full path of a location, right-click it, and then select View full path. When you select this option, a background process runs to fetch the full path. You'll notice the ellipsis (...) scrolling while this happens, and then the path will be cached as a tooltip on your machine any time that location comes up as a prediction in the future.

With 1.1 release:

  • A tooltip prompts you about the possibility to view the full path of the needed location.
  • Upon filing an item, you can hover over the Filing option, to see the following tooltip:

Also, with 1.1 release, the prompt that appears as a red line around the filing panel that blinks three times. It displays the first time you select Send. After this first prompt, select Send again if you still want to send the item without filing, if needed. To see this prompt, select the Prompt to file outgoing messages checkbox in the ndMail Settings dialog box. For more information, see ndMail Interface Overview.

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Send and File an Email to NetDocuments

ndMail provides one-click filing through machine learning by predicting the best filing locations. To file a new item, simply select a location and click Send. The item will be automatically filed when it is sent. Note, drafts can't be filed because they haven't been sent.

To Send and File a New Email

  1. To write a new message, select New Email (or Reply or Forward an email).
  2. Draft and review the email message, and then select a filing location.
  3. Select Send.

The email message is filed to the selected location.

Note: Send and file a meeting.

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Use ndMail to Map Outlook Folders to NetDocuments

ndMail Folder Mapping creates links between Outlook and NetDocuments folders, workspaces, and filters. Any item filed into a linked Outlook folder is automatically profiled to NetDocuments correctly, which means that you can leverage existing Outlook folders without changing the way you work. Learn more.

How to Map Outlook Folders

  1. Install the ndMail Folder Mapping by running the ndMail .exe installer, and open Microsoft Outlook. 
  2. If prompted, enter your NetDocuments username and password.
  3. Right-click the needed folder in the Outlook, and then select Map Folder to ND.
  4. In the Select location in NetDocuments dialog box, select the folder you want to link to in NetDocuments, and then select OK.
  5. In the Link Folder to NetDocuments dialog box, specify the following options, as needed:
  • Copy emails as private – Sets a property on the items synced from this folder so that only you can view it in your NetDocuments repository.
  • Link (unmapped) subfolders too – Allows the syncing of all sub-folders to the mapped folder in NetDocuments.
  • Copy pre-existing emails too – Copies all pre-existing items from the Outlook folder to NetDocuments.
  1. After specifying the needed options, select Link. The corresponding message appears notifying you about the successful mapping to the selected folder.

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Customize Notification Settings

After an item has been successfully filed, a system notification appears at the far right of the taskbar. You can also see warning messages about errors that might have occurred during the document upload or download.

After an item has been successfully filed to a selected location, the following notification message appears. This message is shown for 6 seconds. To view the filed item in NetDocuments, click View in ND.

If an item has not been filed successfully, the following notification message appears. It is shown for 25 seconds.

You need to check whether:

  • You are filing an item to the correct cabinet that has been configured for ndMail.
  • You have properly configured the Exchange Web Service.
  • You are filing emails that are associated with your Exchange account.

Otherwise, you need to contact your administrator, if the problem persists.

In Windows 10, do the following to customize notification settings:

  1. Select Start, and then select Settings.
  2. Select System, and then select Notifications & actions.
  3. Under Get notifications from these senders, click NetDocuments ndMail.
  4. Under NetDocuments ndMail, specify the following notification settings:
  • Notifications – Turn on or off the ndMail notification messages.
  • Show notification banners – Show or hide notification messages in the notification area.
  • Keep notifications private on the lock screen – Show or hide notification messages when the screen is locked.
  • Show notifications in action center – Turn on or off the notification messages in the action center.
  • Play a sound when a notification arrives –Turn on or off the notification message sound.
  • A number of notifications visible in actions center – Specify how many notifications appear.
  • Priority of notifications visible in action center – Set the priority of notifications from ndMail.

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Support and Feedback

If you have any feedback, questions, or report issues, please contact us at support@netdocuments.com or call at the closest customer support center:

  • US customers, call 801-226-6882 or 866-NET DOCS (638-3627).
  • EU customers, call +44(0) 2034.556770.
  • AU customers, call +61 2 8310 4319.

We thank you for your input and feedback and appreciate you using NetDocuments and associated product features. We value you as a customer. 

The NetDocuments Team

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