I have configured my SMTP server and unencrypted .
I get the following error when I try to email a report in NPrinting 17.6
Failed to send e-mail message to firstname.lastname@example.org. ERROR: The SMTP server does not support authentication.
The same SMTP configuration is successful on older versions,
But the same version is successful with other SMTP server on the virtual machine,
Because of other limitations, we succeeded in using other SMTP configurations on another virtual machine
How to solve this issue please?The detailed log is in the attachment