Knowledgebase

Short answer: your mailbox has used all the space it's allowed. Delete old mail, empty the Deleted Items and Junk folders, and remove large attachments. You can see how much each mailbox uses in cPanel under Email Accounts.

Check how full it is

1. Log in to cPanel. See "How do I log in to my hosting control panel (cPanel)?".
2. In the Email section, click Email Accounts. The list shows how much storage each address uses.
3. Use the Exceeded Storage filter to see which mailboxes are full.

Free up space

1. Log in to webmail. See "How do I log in to webmail?".
2. Delete mail you don't need, starting with big messages with attachments.
3. Empty the Deleted Items (Trash) and Junk folders. Deleted mail still takes space until you do.
4. Check the Sent folder too. It often holds the biggest files.

You can also open Email Disk Usage in the Email section of cPanel to see which folders are largest.

Can I make the mailbox bigger?

To ask about a bigger mailbox, open a support ticket and we'll confirm what's possible on your plan.

Good to know

• With IMAP, deleting mail on your phone deletes it on the server too. That's how you free space. See "Should I use IMAP or POP3?".

If it still doesn't work

Open a support ticket with the email address and the message you see.

To send us the right details first time, see "How do I open a support ticket, and what should I include?".

Quick questions

Does deleting on my phone free space? Yes, with IMAP, once the Trash is emptied.

MyGuru Support