Sign in to Outlook Web App

You can use Outlook Web App to access your Office 365 email account via a web browser. The URL (web address) you’ll use to sign in to Outlook Web App depends on the type of account you have.

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What URL do I use to sign in to Outlook Web App?

What else do I need to know

What URL do I use to sign in to Outlook Web App?

  1. Open your web browser or, if it's already open, open a new window.

  2. Go to the URL that matches the type of account you have.

Account

Type

URL

Office 365 operated by 21Vianet

Cloud-based

Go to the Office 365 operated by 21Vianet Sign-In page.

Office 365 operated by 21Vianet (custom domain name)

Cloud-based

Go to the URL provided by the person who manages your email account. For example, a company named Contoso might use a URL such as https://mail.partner.contoso.cn.

  1. Enter the full email address for your work or school account.

  2. Enter your password.

  3. Click Sign in.

  4. Select Outlook at the top of the page.

What else do I need to know

You can use most popular web browsers to access your mailbox. Learn more about our supported browsers.

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