My email is not getting new email as of 10/8/2026. Cannot send new email either.

Because Outlook.com fails in the browser and incoming tests are rejected, use Microsoft’s account-unblocking process first, then send the complete non-delivery report to Outlook.com Support if mail flow does not resume.

1. Check for and clear an account restriction

Outlook.com can temporarily block an account after unusual sign-in activity, even when the Microsoft 365 subscription remains active.^1^

1. Open Microsoft’s Unblock my Outlook.com account page.
2. Select the button to begin the unblock process.
3. Complete the requested security-code or password verification.
4. Sign out of Outlook.com, close the browser, and sign back in.
5. Send a plain-text message with:
   • One recipient
   • No attachment
   • No link or signature

If the unblock page reports no restriction, continue below rather than repeatedly changing the password.

2. Check Microsoft’s service status

Microsoft directs Outlook.com users with access or mail-flow failures to the Service Health Status site. The public known-issues page does not document 7ita.9 as an Outlook.com error or identify a matching October 8 incident.^2^

• If Outlook.com shows an active incident, wait for Microsoft to mark it resolved and then repeat the plain-text test.
• If no incident appears, proceed to support escalation.

3. Give Outlook.com Support the complete delivery error

7ita.9 alone is not enough to identify the failure. The incoming message’s non-delivery report should contain a more useful SMTP status such as 550 5.x.x, together with diagnostic text.

1. Open the bounce message in the sending account.
2. Copy the following, removing email addresses and other personal information:
   • Full error sentence
   • SMTP status code
   • “Diagnostic information for administrators” section
   • Name of the rejecting server, if shown
   • Date and time of the failed delivery
3. In Outlook.com, select Help on the menu bar.
4. Enter cannot send or receive email.
5. If self-help does not resolve it, scroll to Still need help? and select Yes.
6. Include:
   • Mail stopped on October 8, 2026
   • Sending fails in Outlook.com itself
   • The displayed fragment is 7ita.9
   • Messages sent from another account bounce
   • Outlook.com storage is below its limit
   • The complete sanitized non-delivery details

Microsoft identifies in-product Outlook.com support as the escalation route when its send/receive troubleshooting does not resolve the problem.^3^

An active subscription through November 9 confirms the subscription term, but it does not rule out an Outlook.com account restriction or mail-routing problem. Since storage is already below its limit, there is no need to repeat storage cleanup or purchase additional capacity.

References

1. Unblock my Outlook.com account
2. Fixes or workarounds for recent issues on Outlook.com
3. Can't send or receive email in Outlook.com | Microsoft Support