When your Alibaba Mail mailbox reaches its storage limit, incoming emails bounce. Free up space or upgrade your edition to restore delivery.
Problem description
When a sender tries to deliver an email to a full Alibaba Mail mailbox, the message bounces with one of the following errors:
User's disk quota exceeded.
552 mailbox is full.
receiptor's mailbox is full(#5.5.4)
Quota exceed the hard limit for user
This also applies to inter-domain emails within Alibaba Mail. If you receive a bounce containing any of these errors, use the solutions below.
Cause
The Alibaba Mail mailbox is full.
Solutions
To resolve a full mailbox:
1. Check your mailbox capacity and usage.
Log on to the Alibaba Mail web client and click your profile picture in the upper-right corner to view capacity and usage.

2. Log on to the domain management page as postmaster. Go to Organization and Users > Mailbox Management to view the account capacity and usage.

If your mailbox is full, use one of the following methods:
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Method 1: Clean up old emails.
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Download old emails to your computer for backup, and then delete the emails from the server.
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In your third-party email client, go to Service Configuration, select Keep a copy of emails on the server, and set the number of days after which server copies are deleted.
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The following screenshot uses Outlook 2010 as an example. Adjust the deletion period as needed.

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Method 2: Upgrade your mailbox. For more information, see Alibaba Mail upgrade rules.
Alibaba Mail Standard Edition, Alibaba Mail Premium Edition, and Alibaba Mail Group Edition offer unlimited capacity.
References
Applies to
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Alibaba Mail