Additional Information

Configuring the 'Mailto' Protocol for Gmail in Chrome

These instructions were tested using the Chrome browser version below.
07-19-2023 Chrome Version 115.0.5790.99 (Official Build) (64-bit)
The "mailto" URI (Uniform Resource Identifier) scheme is used for email addresses. It allows websites and applications to create email links that automatically open your preferred email client. If you use Gmail, the "mailto" URI will not work by default and must first be configured to use Gmail. OA Mobile, like many applications and websites, uses the "mailto" URI to send email through your preferred email client. If the "mailto" URI is not configured correctly, OA Mobile will not be able to open your preferred email application when sending email. Please follow Steps A–D below to complete the configuration.

When you configure Gmail to use the "mailto" URI, you are instructing applications and websites to open email links using your Gmail account. Before proceeding, sign out of any Gmail accounts currently open in Chrome, then completely close the Google Chrome browser (do not simply minimize it). The "mailto" URI can reliably work with only one active Gmail account at a time. If multiple Google or Gmail accounts are signed in simultaneously, the "mailto" URI may not function correctly or may behave unpredictably.
  1. Open Chrome and select the three vertical dots in the upper-right corner of the browser window.
  2. From the drop-down menu, select |Settings|.
  3. Select the three horizontal lines icon to open the Chrome settings menu (this step may be skipped if your browser window is maximized).
  4. From the menu on the left, select |Privacy and Security|.
  5. In the |Privacy and Security| section, select |Site Settings|.
  6. In the |Permissions| section, select |Additional Permissions|.
  7. In the |Additional Permissions| section, select |Protocol Handlers|.
  8. In the |Protocol Handlers| section, ensure that "Sites can ask to handle protocols" is enabled. If any sites are listed below the default behavior section, remove them. Close Chrome when finished.
Configure Gmail Mailto

Windows 11

  1. From Windows 11, select the |Start| menu.
  2. Search for "Default apps".
  3. Select |Default apps|.
  4. In the |Default apps| section, select |Google Chrome|.
  5. In the |Google Chrome| section, select the |MAILTO| setting to open the list of applications.
  6. In the "Select a default app for MAILTO links" section, select |Google Chrome|.
  7. Select the |Set Default| button.
Configure Windows 11 Global Mailto Settings

  1. Open Gmail and select the "Double Black Diamond" icon located to the right of the address bar.
  2. Select |Allow|.
  3. Select |Done|.
Set Gmail Mailto Permissions

Click the Test Mailto Settings link. If your "mailto" settings are configured correctly, a new email message should open in your Gmail account.
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