Outlook mailbox has no special QR code. However, you can use the related functions of Outlook mailbox to create a personalized email address, which can contain the QR code you want. Here are ways to create personalized e-mail addresses for Outlook mailboxes:

1. Log in to your Outlook mailbox.

2. Click the Options or Settings button at the top of the page.

3. In the settings menu, find the "E-mail" option, and then click Enter.

4. On the E-mail Settings page, locate the New Mail Format or Letter Format section.

5. In this section, you can see a "Display Name" input box. Enter the display name you want here.

6. At the bottom of the page, find the option of personalized email address or customized email address.

7. Select the personalized email address option, and then set the mailbox suffix you want according to the prompts.

8. After setting, your Outlook mailbox will have a personalized address with a QR code. When you send an email to others, they can view your QR code address on the email client or Outlook website.