account hacked and lost all emails

Use Outlook.com on a PC or Mac to open Deleted Items → Recover items deleted from this folder, because the Recoverable Items folder cannot be accessed from a mobile browser.

Recover the missing messages

1. Sign in to Outlook.com using a desktop browser.
2. Check Archive and Junk Email for messages that may have been moved rather than deleted.
3. Open Deleted Items:
   • Select any visible messages.
   • Choose Move → Inbox, or move them to another folder.
4. While still in Deleted Items, select Recover items deleted from this folder at the top.
5. Select the missing messages and choose Restore. Outlook restores them to their original folders where possible; if an original mail folder no longer exists, messages go to the Inbox.^1^

Outlook.com automatically deletes mail from Deleted Items after 30 days. After a message is removed from Deleted Items, it remains recoverable for 30 days; Junk Email is also retained for 30 days. That recovery period runs from when each message was removed from Deleted Items—not necessarily from the date the account was hacked.^1^

Please confirm which year “October 17” refers to. If it was more than 30 days ago, the documented self-service recovery window has probably expired. If the messages are absent from both Deleted Items and Recover items deleted from this folder, they were probably permanently removed and cannot normally be recovered.^2^

If no messages appear

Contact Microsoft Support, describe this specifically as an Outlook.com mailbox deletion following account compromise, and include the compromise date and approximate deletion date. Select Get Help, then Contact Support if offered.^3^

Microsoft Q&A moderators cannot inspect personal mailboxes, submit backend restoration requests, or escalate directly to engineering. Official support is therefore the appropriate fallback, but recovery beyond the self-service folder is not guaranteed.^4^

Also request replacement receipts, statements, or correspondence directly from banks and merchants; this may be the only way to reconstruct permanently deleted records.

Secure the devices and account

Since forwarding rules and unauthorized sessions have already been reviewed, do not repeat those checks. Complete the remaining post-compromise actions:

• If the computer runs Windows: open Windows Security → Virus & threat protection → Scan options → Full scan → Scan now. Microsoft recommends scanning before changing the password.^5^
• On macOS or another platform: run a full scan with that platform’s current, updated security software.
• After scanning, change the Microsoft account password again if it was changed before the device was checked.
• Use Sign out everywhere to terminate existing Microsoft account sessions.
• Enable Microsoft Authenticator or two-step verification, and update the account’s recovery email address and phone number.^3^
• Because text messages and financial accounts were also affected, contact the mobile carrier and financial institutions immediately, dispute unauthorized transactions, replace compromised cards, and ask the carrier to secure the mobile account against unauthorized SIM changes.

References

1. Web
2. My Email account was hacked - how to recover lost emails in my inbox and my pinned emails pls? - Microsoft Q&A
3. How to help keep your Microsoft account secure | Microsoft Support
4. Hacker purged inbox & deleted items – Need backend restoration of deleted emails - Microsoft Q&A
5. How to recover a hacked or compromised Microsoft account | Microsoft Support