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Knowledge Base

Plesk admin receives emails with the message “452 4.3.1 Insufficient system storage”

 
backupemailhostinghosting providermail

Symptoms

Many messages like these are sent to Plesk administrator's email

Out: 220 example.com ESMTP Postfix
In: MAIL From:[email protected]
Out: 452 4.3.1 Insufficient system storage
In: RCPT To:[email protected]
Out: 503 5.5.1 Error: need MAIL command

Cause

Plesk server is out of storage

# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/ploop12525p1 9.8G 9.8G 0G 100% /

Resolution

Increase the storage and extend the partition, or free up space with the options below.

Note: Partitioning is an administrative task; contact your hosting provider for assistance.

  • Find directories and files that take the most space and remove some
  • Remove Plesk backup files that are no longer needed
  • Clean up temporary Plesk files
  • Remove large domain logs
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