Hi,
Thanks for sharing the update. That message usually means your OneDrive storage, not just your email is over the free limit. Even if your Outlook mailbox is under 500 MB, Microsoft counts everything linked to your account, including OneDrive files, Personal Vault, and email, toward your total storage.
The first thing to do is check your overall storage usage by signing in to your Microsoft account and reviewing the breakdown for OneDrive and Outlook. If you’re close to the free limit, even small sync issues can trigger warnings. Clearing space can help empty your OneDrive recycle bin, remove large files, or move them to an external drive. Also, check if your Personal Vault has big files that might be taking up space.
If you need more room, consider upgrading to a Microsoft 365 plan, which gives you 1 TB of storage. And just to be sure, verify your Outlook storage separately in your account settings.
Let me know if this helps or if you need more clarification—I’m happy to assist!
Warm regards,
Edward