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InterScan Messaging Security Virtual Appliance (IMSVA) outbound DomainKeys Identified Mail (DKIM) is not working

    • Updated:
    • 3 Sep 2018
    • Product/Version:
    • InterScan Messaging Security Virtual Appliance 9.0
    • InterScan Messaging Security Virtual Appliance 9.1
    • Platform:
    • N/A N/A
Summary

The outbound DKIM is not working in IMSVA.

Details
Public

Disable header checks that hide private information in order for DKIM Signing to work. Note that both must not enabled at the same time. 

To resolve this issue:

  1. Log in to IMSVA as root.
  2. Modify header_check file.

    #cd /opt/trend/imss/postfix/etc/postfix/
    #vi header_check

  3. Comment out the header_checks, simlar to the following:

    Before modifying:

    /^Received:/ IGNORE

    After modifying:

    #/^Received:/ IGNORE

  4. Press ESC:wq! then ENTER to save.
  5. Restart postfix,

    #postfix restart

  6. Test by semding a mail to Gmail. The check if the mail header from the recipient IMSVA adds the DKIM-Signature for all outgoing email.
Premium
Internal
Rating:
Category:
Configure; Troubleshoot
Solution Id:
1120621
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