Sending, receiving, and organizing email in Outlook.com
No. Emails sent while the account was over quota are returned to the sender and are not held for later delivery. After storage is available again, those messages do not automatically appear in the mailbox.
What can be done:
- Ask the senders to resend the missing emails.
- Check Junk Email, Deleted Items, and Archive in case any messages were delivered elsewhere.
- Confirm the account is now under both Microsoft cloud storage and mailbox storage limits.
Relevant behavior for this scenario:
- If Microsoft cloud storage is full, Outlook.com cannot send or receive email, even if the mailbox quota itself was not exceeded.
- If email storage is full, Outlook.com also cannot send or receive email.
- Messages sent during that period are bounced back to the sender and must be resent after storage is freed up or the subscription is restored.