The issue occurs because the TLS settings of InterScan Messaging Security Virtual Appliance (IMSVA) is designed to be maintained using the IMSVA WebUI.
To manually maintain the TLS settings:
- Add "smtp_tls_security_level" to "detach_key_postfix" located in /opt/trend/imss/config/imss.ini.
detach_key_postfix=smtp_tls_security_level
- You may also add other keys to maintain such as "smtpd_tls_security_level" by separating the keys with colon (:).
Here is an example:detach_key_postfix=smtp_tls_security_level:smtpd_tls_CAfile:smtpd_tls_cert_file:smtpd_tls_key_file:
smtp_tls_CAfile:smtp_tls_cert_file:smtp_tls_key_file:smtpd_tls_security_level - Save the changes in imss.ini.
- Restart the IMSSMGR Service using the following command:
#/opt/trend/imss/script/S99MANAGER restart
- Backup the /opt/trend/imss/postfix/etc/postfix/main.cf.
- Configure the main.cf file as needed.
- Restart the Postfix service using the command below:
#postfix restart