Sending, receiving, and organizing email in Outlook.com
Open Outlook.com in a private window or a different supported browser first; if it opens there, remove the original browser’s Outlook/Microsoft site data and disable content-blocking extensions.
1. Isolate the browser problem
Go directly to Outlook.com in a private window:
- Safari: File → New Private Window
- Chrome: File → New Incognito Window
- Firefox: File → New Private Window
- Edge: File → New InPrivate Window
Sign in with the full Hotmail address and Microsoft account password. Hotmail is now accessed through Outlook.com, and its password is the Microsoft account password.^1^
If the private window works, normal-browser site data or an extension is likely interfering:
- If using Safari: Open Safari → Settings → Privacy → Manage Website Data. Search for and remove entries containing Outlook, Live, or Microsoft, close Safari completely, and reopen it. This has resolved the same Safari loading pattern for other Mac users.^2^
- Temporarily disable ad blockers or content blockers, especially AdBlock or uBlock, and reload Outlook.com. Microsoft documents that these extensions can prevent Outlook.com from loading.^3^
If another browser is installed, also test Outlook.com there. On macOS, Microsoft supports current versions of Safari 16 or later, Edge, Firefox, and Chrome.^3^
2. If it will not open in any browser
- Check the Microsoft Service Health Status. If Outlook.com shows an incident, wait until the service returns to normal.^4^
- Try Outlook.com from another device, such as a phone:
- If it works there, the account is active and the problem is local to the Mac’s browser or network.
- If it fails there too, use Microsoft’s sign-in troubleshooter.^1^
- If possible, briefly test through another network, such as a phone hotspot. If that works, restart the router and review any DNS filtering, VPN, firewall, or web-security software on the original network.
Also check Apple menu → About This Mac and Safari → About Safari for the exact versions. The macOS requirement itself is not the likely limitation—Outlook.com supports macOS 10.15 or later—but the browser should be current.^3^
References