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Mail is deferred with error code 451 in InterScan Messaging Security Virtual Appliance (IMSVA)

    • Updated:
    • 19 Feb 2016
    • Product/Version:
    • InterScan Messaging Security Virtual Appliance 8.2
    • InterScan Messaging Security Virtual Appliance 8.5
    • InterScan Messaging Security Virtual Appliance 9.0
    • Platform:
    • N/A N/A
Summary

Mail is deferred, and the following error message show up in the maillog:

host localhost[127.0.0.1] said: 451 Transaction failed. ERROR: write to file

The output of df command is shown as:

# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/IMSVA-Root2
                      9.7G  9.7G     0 100% /
/dev/mapper/IMSVA-Snapshot
                       30G  173M   28G   1% /snapshot
/dev/mapper/IMSVA-App_data
                      156G   17G  131G  12% /var/app_data
/dev/mapper/IMSVA-Spool
                       20G  4.1G   15G  22% /var/spool
/dev/sda1             122M   13M  104M  11% /boot
tmpfs                 2.0G  100K  2.0G   1% /dev/shm

Details
Public

Root cause:

The root folder / is out of space; and both /tmp folder and /opt/trend/imss/temp folder are in this partition. When users manually copy many files to /tmp folder, while the partition is out of space, it causes IMSVA to fail to write mail data files to /opt/trend/imss/temp. Mail scanning stops because of the write file error. They then get stuck in the Postfix queue.

To solve this problem:

  1. Use PuTTY or other SSH tools to SSH to IMSVA with root account.
  2. Remove the manually copied files under /tmp folder
  3. Flush the mail queue with postqueue command:

    #postqueue -f

 
Always avoid copying files to /tmp folder. Use /var/app_data folder instead for tempoary file copies because the partition /dev/mapper/IMSVA-App_data is much bigger.
Premium
Internal
Rating:
Category:
Troubleshoot
Solution Id:
1113411
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