Secure Messages Gmail add-in

The Secure Messages Gmail add-in secures outbound email messages with attachments when sent by any of your users via their Google Workspace account. Alternatively, users can send, receive, and manage secure messages directly from the Secure Message web portal.

note

Sending a message in Gmail using the Secure Messages add-in is optional. You can continue to send unsecured messages through Gmail, as normal, without using the add-in. For more information, see Using the Gmail add-in.

Supported platforms

The Secure Messages Gmail add-in is compatible with both the web and mobile platforms of Gmail.

Prerequisites

Make sure you meet the following prerequisites to use the Secure Messages add-in:

  • The Email Security module is enabled in your workspace.
  • The Secure Messages add-on is enabled in your workspace.

Installing the Secure Messages Gmail add-in

Admin users can deploy the Secure Messages Gmail add-in to devices through Google Workspace. Coro provides a direct link to the Secure Messages for Gmail add-in page in Google Workspace Marketplace in the console.

To view the Secure Messages for Gmail Google Workspace Marketplace page:

  1. Sign in to the Coro console .
  2. From the sidebar, select Control Panel to access the Control Panel .
  3. Select Email Security :

    Email Security

  4. From the Email Security configuration page, select Secure Messages :

    Secure Messages

    note

    The Secure Messages tab is only enabled if the Secure Messages add-on is enabled for your workspace.

  5. Select Install for Gmail :

    Install

    Coro redirects to the Google Workspace Marketplace webpage.

Admin install

  1. MSP admin users with sufficient permissions can select Admin install to install the Secure Messages for Gmail add-in for all device users simultaneously:

    Admin install

  2. Review the terms of service and privacy policy. Select CONTINUE to proceed with the installation:

    Admin install terms of service

  3. Select whether to install the Secure Messages for Gmail add-in for Everyone in your organization or Certain groups or organizational units .
  4. Review the application's terms of service, privacy policy, and Google Workspace Marketplace's terms of service. Select FINISH to start the installation:

    Google Workspace Marketplace's terms of service

    After the installation completes, Google displays a message informing you that the add-in was successfully installed:

    Installation complete

  5. Select DONE .

Individual install

  1. Device users can select Individual install to install the Secure Messages for Gmail add-in from their Google Workspace account:

    Individual install

  2. Review the request for the Secure Messages for Gmail add-in to access your Google Workspace account. Select Allow to proceed with the installation:

    Individual install access request

    After the installation completes, Google displays a message informing you that the add-in was successfully installed:

    Installation complete

  3. Select DONE .

Using the Gmail add-in

Device users and MSP admin users can use the Secure Messages Gmail add-in directly from their Gmail environment when:

  • Composing a new message.
  • Replying to a message.
  • Forwarding a message.

To use the Secure Messages add-in from Gmail:

  1. Enter the recipients, subject, message, and any necessary files while composing, forwarding, or replying to a message.
  2. Select Secure Messages from the toolbar:

    CoroMail

  3. Review and grant any required permissions.

    Gmail displays the Secure Messages for Gmail dialog with a preview of your message:

    Install

  4. Select Send Encrypted .

    If the sender exists in the Protected users list in your workspace, Gmail sends the message securely through the add-in and displays a success message:

    Gmail success

    If the sender does not exist in the Protected users list, Gmail cancels the action and reports an error:

    Gmail failed

note

Gmail does not keep a copy of messages sent via the Secure Messages add-in in the Sent folder. To view your secure messages, access the Secure Messages web portal.

For further information, see Secure Messages.

Reinstalling the Secure Messages for Gmail add-in

If you experience issues with the Secure Messages for Gmail add-in (for example, selecting the Report Phishing button not resulting in tickets in the Coro console), reinstalling the add-in can solve the issue.

Before you reinstall the Secure Messages for Gmail add-in, you must uninstall it. You need to have sufficient permissions to uninstall and reinstall the Secure Messages add-in.

To uninstall the Secure Messages for Gmail add-in:

  1. In your browser, go to https://www.google.com/ and sign in to your Google account.
  2. From your Google Avatar, select Manage your Google Account to access your account settings.
  3. In the navigation pane, select Security .
  4. Select Your connections to third-party apps & services .
  5. Select Secure Messages for Gmail .
  6. Select Delete all connections that you have with Secure Messages for Gmail .
  7. Select Confirm .

To reinstall the add-in:

note

If you reinstalled the add-in to fix an issue, try installing it on a different user account and device to rule out any local problems.