Unable to syncronize a mailbox or send an email on Plesk server: Mail handler ‘check-quota’ said: 452:4.2.2 Mailbox full

Dmitry Bystrov

1 year ago

Symptoms

After sending message to mail box john_doe@alias.com the following warning is shown in webmail:

Roundcube:

An error occurred while saving sent message. Unable to perform operation. No free disk space.

Horde:

You exceeded mail quota

Note: The same can be true for mail forwarding.
The mailbox quota is set to Unlimited or its limit is not reached at Plesk > Domains > example.com > Email Addresses.
Subscription disk space is set to unlimited or its limit is not reached, which can be seen at Plesk > Domains > example.com > View More Statistic.
Unable to synchronize a mailbox with a mail client or send an email to john_doe@example.com. The following error appears in /var/log/maillog file:

postfix/pipe[17519]: 7AEB011C1531: to=<john_doe@example.com>, relay=plesk_virtual, delay=25950, delays=25950/0/0/0.12, dsn=4.3.0, status=deferred (temporary failure. Command output: Mail handler 'check-quota' said: REPLY:452:4.2.2 Mailbox full 4.2.1 Message can not be delivered at this time )

postfix/cleanup[16783]: B22C11DC00BE: milter-reject: END-OF-MESSAGE from smtp.gmail.com[127.0.0.1]: 4.2.2 Mailbox full; from=user@gmail.com to=<john_doe@example.com> proto=ESMTP helo=<smtp.gmail.com>

The file /var/qmail/mailnames/example.com/john_doe/Maildir/maildirsize is corrupted.

Connect to the server via SSH.

Note: if direct SSH access to the server is not possible, contact server administrator for further assistance.
Remove the file maildirsize of the affected domain:

# rm -rf /var/qmail/mailnames/example.com/john_doe/Maildir/maildirsize
- example.com - a name of an affected domain
- john_doe - a name of an affected mailbox
Recreate the file maildirsize by re-saving the same settings defined in Plesk:

Log into Plesk.
Go to Domains > example.com > Email Addresses > john_doe@example.com > click OK without making any changes

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