- Login to the IMSVA shell.
- Edit the main.cf file located under the /opt/trend/imss/postfix/etc/postfix directory.
- Look for the line "inet_protocols" and set it to "inet_protocols = ipv4".
- Save the main.cf file.
- Restart Postfix using the command "service postfix restart".
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Unable to send email to some domains using IPv6 in InterScan Messaging Security Virtual Appliance (IMSVA)
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