No emails are going out or coming in since 12:42 pm today

For Outlook.com/MSN mail, check these first in order:

1. Check mailbox and cloud storage space. If Microsoft cloud storage is full, mail cannot be sent or received, and messages sent during that time can bounce back and be unrecoverable.
2. Check the account status. If the password was changed recently, update it. The account can also be temporarily blocked because of unusual sign-in activity; if sign-in is affected, use the Microsoft account sign-in helper.
3. In Outlook.com, check whether messages are being hidden:
   • Check the Other tab.
   • Check the Junk Email folder and Junk Email settings.
   • Restore sorting with Filter > Sort > Date.
   • Check whether email forwarding is enabled.
   • Check for email rules that may be moving or hiding messages.
4. If sending fails:
   • Remove any attachment larger than 25 MB.
   • If there is a non-delivery receipt, review the reason in that message.
   • If a signature is configured, remove it and try sending again.
5. If using Outlook on the web and mail is received but not sent, check Settings > Mail > Sync email and verify the From address, then go to Settings > Mail > Compose and reply and reset the default From address. After that, clear the browser cache or try another browser, then sign out and sign back in.
6. If using an Outlook app, confirm the internet connection by opening a browser and testing access to a site such as Microsoft or Bing.

If the issue started suddenly at a specific time and affects both sending and receiving, the most common checks from the documented guidance are storage, account block/password state, rules/forwarding/junk filtering, and browser or app sync state.

• Can't send or receive email in Outlook.com | Microsoft Support
• Context # Can't send or receive email in Outlook.com | Microsoft Support
• Context # Can't send or receive email in Outlook.com | Microsoft Support
• I can't send or receive messages in Outlook | Microsoft Support
• Context I can not send emails but I receive them - Microsoft Q&A
• Context Cant send nor recieve any email - Microsoft Q&A