Why is outlook.com auto deleting my emails?

Tom 20 Reputation points
2026-04-24T06:46:37.6+00:00

This just started yesterday, but outlook.com (web access) is automatically deleting emails randomly. Rules have not been built as these are from regular senders. I just noticed it beginning Thursday 4/23. Advice? Is it a known Microsoft issue being worked on?

Outlook | Web | Outlook.com | Email
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Answer accepted by question author
Chloe-L 13,710 Reputation points Microsoft External Staff Moderator
2026-04-24T22:02:15.95+00:00

Hi Tom,

Thank you for reporting this. I understand how worrying it can be to see emails disappear unexpectedly.

To answer your question, I’m not currently aware of any official Microsoft reports confirming a widespread auto‑deletion issue. In most cases, this behavior is caused by Outlook’s built‑in mail management features rather than a service outage.

I recommend checking the following common causes:

  1. Focused / Other Inbox Messages may not be deleted, but instead sorted into the Other tab. Please check both Focused and Other to confirm where the emails are landing.
  2. Sweep Rules: Go to Settings > Mail > Sweep and review any existing rules (these can sometimes be created unintentionally).
  3. Connected Account Forwarding If another email account is connected to Outlook, it may be set to delete messages after forwarding. Check Settings > Mail > Sync email and review any connected accounts.
  4. POP Access from Another App If another mail app is accessing your mailbox using POP3, it may download and remove emails from the server. You can review this under Settings > Mail > Forwarding and IMAP. Scroll down to the "POP and IMAP" section. Look for the option that says "Let devices and apps use POP." If it is turned on, switch it to OFF and click Save. 
  5. Account Security Activity If none of the above apply, it’s important to rule out unauthorized access. Please review your recent sign‑in activity at https://account.microsoft.com/security If you notice anything suspicious, I recommend change your password immediately and enable two‑step verification if it’s not already on.

Please try these steps and let me know what you find. If the issue continues, feel free to reply with any additional details and I’ll be happy to assist further.

Best regards,


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