The quota is a disk space limit for a specific mailbox. Once it fills up, new mail won’t arrive (the sender’s server gets “mailbox full”).
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What quota to set
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- Personal: 500 MB — 1 GB usually enough
- Info, sales: 2–5 GB — many attachments
- Archive, accounting: 5–10 GB or Unlimited
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How to change the quota in cPanel
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- cPanel → Email → Email Accounts
- Find the mailbox in the list
- Click Manage
- In the Storage section change the value in MB or set Unlimited
- Click Update Email Settings
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How to clear a mailbox
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When the quota is full and there’s no space:
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- Open Webmail (
https://yourdomain.tj/webmail) - Log into the mailbox
- Delete old folders (Sent, Trash, Junk) or big messages
- Don’t forget to empty the trash — otherwise space isn’t freed
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Alternatives to overflow
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- Auto-forward important messages to Gmail/corporate mail
- Use an IMAP client with a local archive — old mail moves to your computer
- Set up a cron job to automatically delete spam older than 30 days