Email Sent Message Error: Mailbox Quota Exceeded - Knowledgebase (2024)

One common bounced back email error message when sending email is: Mailbox quota exceeded. This error occurs when you have a disk quota for an hosting account exceeded or one of your email users no longer has enough space for the message being sent to them.

Symptoms:

If your email address has used the allowed quota, there are a few ways to correct this.

First, you could simply delete some of your emails. Deleting emails in your email client will remove them from the server and lower the space used. If you have any emails with large attachments, deleting those will free up space.

Steps to increase the quota for an email account:

Step 1) Login to the cPanel of the domain using your domain name as follows :

IMPRTANT: If the disk quota of the email account is not causing the issue then the quota limit for the domain might be exceeded.Steps 3) Please check If any of your email accounts are over quota, they will show in red. Either you can delete the unwanted files or you can increase the quota of the domain.

Steps 4) To raise the quota, click on "Change Quota" under actions shown in cPanel

Steps 5) Raise the number in the "Mailbox Quota" field and click Change Quota. Now, as you can see the quota has raised and the address no longer shows as red.

You can use this method to raise the quota on any email account. If any inboxes are close to full, you can raise the quota to avoid a future issue.

You should consider deleting older messages to avoid having to increase your quota frequently, or consider setting your quota far higher than necessary. Allocating additional amounts of storage to a mailbox will not affect account usage.

Print this Article