Open Outlook.com in a private browsing window and sign in with the same personal Microsoft account, because successful access to other Microsoft pages indicates this is more likely isolated to the browser session than an account-wide sign-in failure.
- Open a private window:
- Edge: Settings and more (…) → New InPrivate window
- Chrome: Menu (⋮) → New Incognito window
- Firefox: Menu (☰) → New private window
- Safari: File → New Private Window
- Navigate to Outlook.com and enter the full Outlook.com, Hotmail, or Live address and Microsoft account password. Those are the credentials Outlook.com requires.^1^
- If Outlook.com works privately, remove only its existing site data in the normal browser:
- Open the browser’s Privacy/Cookies/Site data settings.
- Search for and remove entries containing
outlook, live.com, and Microsoft sign-in data.
- Close every browser window, reopen the browser, and sign in again.
- If private browsing does not work, try the current version of Edge, Chrome, Firefox, or Safari. Outlook.com requires a supported browser and active Microsoft account.^2^
For Safari on macOS specifically, Microsoft documents this workaround:
- Select Safari → Preferences/Settings → Privacy.
- Temporarily turn off Prevent cross-site tracking.
- Ensure Block all cookies is turned off.
- Retry Outlook.com.^3^
About the “Google – IMAP” message
“Google – IMAP” does not normally describe signing into an Outlook.com/Hotmail/Live mailbox in a browser. Microsoft documents the similar message “Sorry, we could not sign you in to Google – IMAP” for adding a Gmail account to the desktop Outlook application, not for opening an Outlook.com mailbox on the web.^4^
If Outlook.com is redirecting to a Google authorization page, do not enter credentials until the destination is understood. Copy the complete error text and code, or provide a screenshot with the email address and personal information removed. The exact wording is needed to distinguish:
- an Outlook.com browser-session failure;
- a Gmail account previously connected to Outlook; or
- a link/bookmark opening Gmail configuration rather than the Outlook.com mailbox.
If the complete message is specifically about connecting Gmail, Outlook.com on the web cannot be used to sign directly into a non-Microsoft IMAP mailbox; that scenario requires an Outlook client that supports adding IMAP accounts.^5^
Use Microsoft’s account sign-in helper. Microsoft states that Outlook.com support cannot manually bypass sign-in protection; users who cannot sign in should use that helper.^6^
Because the account works on other Microsoft pages, another option is the direct Outlook.com support contact path for users unable to access the mailbox:
Contact Outlook.com support
Do not post the email address, password, recovery codes, session ID, or verification codes publicly.
References
- How to sign in to Outlook.com | Microsoft Support
- Supported browsers for Outlook on the web and Outlook.com | Microsoft Support
- Fixes or workarounds for recent issues on Outlook.com | Microsoft Support
- Unable to add a Gmail account to Outlook "Could not sign you in to Google" | Microsoft Support
- Outlook Web Login Using IMAP Account - Microsoft Q&A
- How to get support for Outlook.com | Microsoft Support