A full mailbox is one of the most common email issues. Each email account has a storage limit on the server. When the limit is reached, new incoming emails cannot be delivered, and the sender may receive a bounce-back message indicating that the mailbox is full.

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Examples of Full Mailbox messages:

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			SMTP error from remote mail server after RCPT&nbsp;TO:&lt;user@example.com&gt;: 452&nbsp;&lt;user@example.com&gt; Mailbox size limit exceeded&nbsp;

			&lt;user@example.com&gt;: User is over the quota. You can try again later.&nbsp;

			&lt;user@example.com&gt;: host in7.example.com said:&nbsp;552&nbsp;&lt;user@example.com&gt;…&nbsp;Mailbox is full&nbsp;

			Mailbox limit exceeded while appending message 550 &lt;user@example.com&gt;…&nbsp;Can’t create output&nbsp;

			&lt;user@example.com&gt;: host mail9.example.com said:&nbsp;552 Requested mail action aborted: exceeded storage allocation&nbsp;
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If you encounter this error, contact the recipient through another method to inform them.

If your mailbox is full, delete unwanted emails or follow the guide on&nbsp;<a href="/help/article/how-to-change-mailbox-quota/" target="_self">how to change mailbox quota</a>.

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Email Errors - Full Mailbox