Mailbox storage and total hosting storage are related but separate limits. Increasing one mailbox’s allowance does not expand the hosting account.

What to do

  1. Check the mailbox’s quota in Email Accounts and the overall account usage in Disk Usage.
  2. Archive messages you need to retain to a trusted location. Check large attachments, Sent, Trash and spam folders.
  3. Delete only messages you no longer need; removing messages through IMAP may remove them from every synchronized device.
  4. Ask JIJ about available quota or plan changes if the account remains close to its limit.

Good to know

Do not empty an entire mailbox as a first troubleshooting step. Confirm retention requirements and keep an appropriate archive.

Related help

Reviewed October 18, 2026. Need help? Contact JIJ support.

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