possible hack nd deleted mail

Question

i had a spam mail go out to my mail list yesterday, tuesday.

then my incoming mail has been deleted, whats happening and how to fix it

Answer 1

It sounds like your email account may have been compromised, especially since you mentioned that a spam email was sent out and your incoming mail has been deleted. Here are some steps you can take to address this issue:

1. Check for Suspicious Activity: Look for any unusual activity in your Sent Items folder. If you see messages that you did not send, it indicates that your account may have been hacked.
2. Change Your Password: Immediately change your email password to secure your account. Make sure to choose a strong password that you haven't used before.
3. Enable Multi-Factor Authentication (MFA): If you haven't done so already, enable MFA for an added layer of security.
4. Review Inbox Rules: Check your email settings for any suspicious rules that may have been created to forward or delete emails. In Outlook, you can do this by going to Settings → Mail → Rules.
5. Check for Unknown Forwarding Addresses: Make sure there are no unknown forwarding addresses set up that could be redirecting your emails.
6. Sign Out of All Sessions: Use the option to sign out of all active sessions in your Microsoft account to ensure that any unauthorized access is terminated.
7. Monitor Your Account: Keep an eye on your account for any further suspicious activity and consider notifying your contacts about the spam email that was sent from your account.
8. Scan for Malware: Run a malware scan on your devices to ensure that there are no malicious programs that could compromise your account further.

If the problem persists, you may want to reach out to Microsoft support for additional assistance.

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References:

• Respond to a compromised cloud email account
• Fix NDR error code "550 5.1.1" through "550 5.1.20" in Exchange Online