Question
What are the steps to free up space in the recipient's mailbox?
Asked by: USER1756
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63 Answers
Answer (63)
To resolve the 552 5.3.4 error, the recipient needs to delete unnecessary emails, attachments, and temporary files from their Outlook mailbox. They can also empty the 'Junk Email' folder and archive older emails. If the mailbox is consistently full, they may need to contact their IT administrator to increase the quota.