Likely fix
Fix: Email says recipient mailbox is full
Mailbox full means the recipient's email account has no space left or cannot accept new messages right now.
Quick answer
There is usually nothing to fix on your side. Contact the recipient another way or try again later.
Important warning
Sending the same message repeatedly will not fix a full recipient mailbox.
Try this
- 1 Check that you sent to the correct address.
- 2 Try sending a short email with no attachments.
- 3 If it still bounces, the recipient likely needs to free space.
- 4 Contact the recipient by phone, text, or another email address.
- 5 Try again later after they clear their mailbox.
Common causes
Recipient mailbox storage is full.
Recipient account is inactive.
Recipient mail server is temporarily refusing mail.
Large attachment pushed the message over the limit.
What to check next
- Check whether a no-attachment message bounces too.
- Check whether other recipients receive your emails.
- Check whether the bounce says quota, storage, or mailbox full.
- Check whether you have another way to contact the person.