You have multiple accounts
Choose the account you want to sign in with.

Microsoft Outlook supports multiple account types such as Microsoft Exchange Server, POP3, IMAP, and (formerly Hotmail).

Some features in Outlook require an Exchange account, which is provided by your organization,  Microsoft 365, and some Internet hosting providers.

Check your account type in Outlook

  1. In the main Outlook window, choose File > Account Settings > Account Settings.

    Account settings in Outlook

  2. On the Email tab, you'll see your accounts and the Type for each.

    An Exchange account is listed as Microsoft Exchange.

    Account type in Outlook

Exchange version specific features

Some Outlook features require specific versions of Exchange. If you are using an Exchange account, see Determine the version of Microsoft Exchange Server my account connects to.

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