# Email Quota Exceeded, Cleanup and Archiving Guide

https://bihostnet.com/en/knowledgebase/article/email-quota-cleanup-archiving-guide

## Understanding "Mailbox is full" Errors

When an individual email box reaches its allocated quota limit, incoming emails bounce back to the sender with a delivery failure notice.

## Reclaiming Disk Space Fast

- **Empty Trash & Junk:** Permanently purge deleted items in Webmail.
- **cPanel Email Disk Usage:** Inspect folder sizes and apply batch cleanups (e.g., delete messages older than 1 year).
- **Increase Mailbox Limit:** In cPanel Email Accounts, increase the storage quota.

## Local Archiving with Outlook (.PST)

Move older emails off the server to your local hard drive using Outlook **File > Tools > Clean Up Old Items**. This frees server capacity while keeping message history searchable locally.